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https://kth.diva-portal.org/smash/record.jsf?faces-redirect=true&language=en&searchType=SIMPLE&query=&af=%5B%5D&aq=%5B%5B%5D%5D&aq2=%5B%5B%5D%5D&aqe=%5B%5D&pid=diva2%3A1884687&noOfRows=50&sortOrder=author_sort_asc&sortOrder2=title_sort_asc&onlyFullText=false&sf=all Fractal superconducting nanowire single-photon detectors and their applications in polarimetric... fractal superconducting single photon https://experts.umn.edu/en/publications/anisotropic-superconducting-and-magnetic-properties-of-a-single-c/ Anisotropic superconducting and magnetic properties of a single crystal of ErRh4B4 -... magnetic properties single crystal anisotropic superconducting https://www.ic.cnr.it/tag/superconducting-transition-temperature/ Superconducting transition temperature Archives - Istituto di Cristallografia - CNR superconducting transition temperature archives istituto https://pubchem.ncbi.nlm.nih.gov/patent/EP-0354616-A3 Method for producing a superconducting oxide layer - Patent EP-0354616-A3 - PubChem EP-0354616-A3 chemical patent summary. https://research.utwente.nl/en/publications/superconducting-thin-films-of-mgb2-on-si-by-pulsed-laser-depositi/ Superconducting thin films of MgB2 on Si by pulsed laser deposition - University of Twente Research... https://www.sciencedaily.com/releases/2021/09/210928102233.htm Will twisted superconducting flakes make better components for quantum computers? | ScienceDaily Researchers have found a way to make 'single-crystal flake' devices that are so thin and free of defects, they have the potential to outperform components used... make better quantum computers twisted superconducting flakes https://eprints.soton.ac.uk/56951/ Influence of the crystal field potential on the superconducting properties of PrRu4Sb12 - ePrints... of the influence crystal field https://uwspace.uwaterloo.ca/items/61ef5644-8439-4c24-a532-223747793b9b Superconducting Nanostructures for Quantum Detection of Electromagnetic Radiation In this thesis, superconducting nanostructures for quantum detection of electromagnetic radiation are studied. In this regard, electrodynamics of topological... superconducting nanostructures quantum detection electromagnetic https://meetings.aps.org/Meeting/MAR18/Session/F39.5 APS -APS March Meeting 2018 - Event - Remote communication between two superconducting qubit... aps march meeting remote communication event https://arxiv.org/abs/1501.03098 [1501.03098] Dipolar Spin Models with Arrays of Superconducting Qubits Abstract page for arXiv paper 1501.03098: Dipolar Spin Models with Arrays of Superconducting Qubits spin models arrays superconducting qubits https://meetings.aps.org/Meeting/MAR12/Session/D3.2 APS -APS March Meeting 2012 - Event - Competition between charge and superconducting orders in... aps march meeting https://kth.diva-portal.org/smash/record.jsf?faces-redirect=true&language=no&searchType=SIMPLE&query=&af=%5B%5D&aq=%5B%5B%5D%5D&aq2=%5B%5B%5D%5D&aqe=%5B%5D&pid=diva2%3A1825303&noOfRows=50&sortOrder=author_sort_asc&sortOrder2=title_sort_asc&onlyFullText=false&sf=all Growth of Nb films on Cu for superconducting radio frequency cavities by direct current and high... https://research.utwente.nl/en/publications/the-chimney-and-superconducting-buslines-for-the-atlas-central-so/ The Chimney and superconducting buslines for the ATLAS central solenoid - University of Twente... the chimney https://researchconnect.buffalo.edu/en/publications/near-isotropic-performance-of-intrinsically-anisotropic-high-temp/ Near-isotropic performance of intrinsically anisotropic high-temperature superconducting tapes due... high temperature near performance https://eng.ed.ac.uk/studying/degrees/postgraduate-research/phd/cryogenic-power-electronics-for-next-generation Cryogenic Power Electronics for Next Generation Superconducting Drivetrains | School of Engineering... power electronics next generation school of cryogenic https://meetings.aps.org/Meeting/MAR20/Session/W07.7 APS -APS March Meeting 2020 - Event - Using Superconducting Qubits for Axion Dark Matter Detection aps march meeting https://eprints.soton.ac.uk/373013/ Tests of the nuclear equation of state and superfluid and superconducting gaps using the Cassiopeia... of the https://uwspace.uwaterloo.ca/items/494eeb9b-f42a-441f-bcff-e20507e088ec Nonlinearity and Gating in Superconducting Nanowire Single Photon Detectors The quantum properties of electromagnetic radiation at single photon level promise to offer what are classically inaccessible. Single photon sources and... nonlinearity gating superconducting single photon https://research.ibm.com/publications/doubly-nonlinear-superconducting-qubit Doubly nonlinear superconducting qubit for Physical Review A - IBM Research Doubly nonlinear superconducting qubit for Physical Review A by Dat Thanh Le et al. nonlinear superconducting qubit physical review https://mr.copernicus.org/preprints/mr-2025-10/ MRD - Spin prepolarization with a compact superconducting magnet Abstract. Compact benchtop NMR systems provide excellent and affordable access to good-quality NMR spectroscopy. Nevertheless, such systems are limited by low... with a mrd spin compact superconducting https://scholars.lib.ntu.edu.tw/entities/publication/0490b63b-aff6-4b6d-b333-72567ea5f3fb In-Vivo High Resolution Rat Brain using a Temperature-Stable High-Temperature Superconducting... in vivo high resolution rat https://dukespace.lib.duke.edu/items/82ff5802-bcdf-40fe-b697-eda76cdb16f8 Floquet Majorana fermions for topological qubits in superconducting devices and cold-atom systems. We develop an approach to realizing a topological phase transition and non-Abelian braiding statistics with dynamically induced Floquet Majorana fermions... https://publications-cnrc.canada.ca/eng/view/object/?id=1dd6a063-a501-4707-92b6-8ba6e62e9471 A tunneling investigation of energy-gap anisotropy in superconducting bulk tin crystals - NRC... A tunneling investigation of energy-gap anisotropy in superconducting bulk tin crystals https://eprints.soton.ac.uk/362815/ Fano resonances in high-Tc superconducting metamaterials - ePrints Soton fano resonances high tc superconducting https://impact.ornl.gov/en/publications/anisotropic-and-quasipropagating-spin-excitations-in-superconduct/ Anisotropic and quasipropagating spin excitations in superconducting Ba (Fe0.926 Co0.074)2... https://infoscience.epfl.ch/entities/publication/72b3ffdc-0f6c-4b27-8b5e-89cfbd277da2 Superconducting cavity nanoelectromechanics superconducting cavity https://publikationen.bibliothek.kit.edu/1000125629 Coherent superconducting qubits from a subtractive junction fa... Josephson tunnel junctions are the centerpiece of almost any superconducting electronic circuit, including qubits. Typically, the junctions for qubits are fabr superconducting qubits coherent junction fa https://futurism.com/the-byte/mit-magnets-ready-fusion MIT Claims Superconducting Breakthrough Means Fusion Power Can Be Practical The report features six studies that thoroughly examined MIT's superconducting magnets design used in its breakthrough fusion test. fusion power can be mit claims superconducting https://ntrs.nasa.gov/citations/20230009901 Cryogenic Vacuum Chamber Testing of A Conductively-Cooled, High Temperature Superconducting Rotor... This paper presents the first ever demonstration of a superconducting rotor cooled conductively without a cryogenic fluid or solid. The full-scale rotor was... vacuum chamber https://arxiv.org/abs/2412.16279 [2412.16279] First Sub-MeV Dark Matter Search with the QROCODILE Experiment Using Superconducting... Abstract page for arXiv paper 2412.16279: First Sub-MeV Dark Matter Search with the QROCODILE Experiment Using Superconducting Nanowire Single-Photon Detectors https://www.superchips-ml.com/ Home | Superconducting Reconfigurable Quantum Control - San Francisco Reconfigurable Digital IP for Fast and Efficient Control of Complex Systems like Superconducting Quantum Computers and Neuromorphic Large Scale Systems. Fast... quantum control superconducting san francisco https://research-portal.st-andrews.ac.uk/en/publications/electronic-structure-of-the-cuprate-superconducting-and-pseudogap/ Electronic structure of the cuprate superconducting and pseudogap phases from spectroscopic imaging... electronic structure of the https://researchconnect.buffalo.edu/en/publications/discontinuity-of-the-isothermal-elastic-compliance-across-the-sup/ Discontinuity of the isothermal elastic compliance across the superconducting transition in... of the discontinuity isothermal elastic compliance https://ar5iv.labs.arxiv.org/html/0809.0770 [0809.0770] Evolution of an Unconventional Superconducting State inside the Antiferromagnetic Phase... We report a 73Ge nuclear-quadrupole-resonance (NQR) study on novel evolution of unconventional superconductivity in antiferromagnetic (AFM) CeNiGe3. The... https://meetings.aps.org/Meeting/MAR15/Session/S39.9 APS -APS March Meeting 2015 - Event - Characterization of Fabrication Defects in Superconducting... aps march meeting event https://publikationen.bibliothek.kit.edu/230092713 Superconducting high field magnets superconducting high field magnets https://kollarlab.umd.edu/publications/strong-driving-toolkit-topological-floquet-energy-pumps-superconducting-circuits A strong-driving toolkit for topological Floquet energy pumps with superconducting circuits | Joint... https://indico.uu.se/event/596/contributions/945/ 3rd International Workshop of the Superconducting Magnets Test Stands (11-June 12, 2019): Power... Overview After the successful workshop, we had in the past few years at CERN and in BNL, we propose you to meet at Uppsala University and exchange again on our... https://sciences.ucf.edu/physics/nakajimalab/unusual-upper-critical-field-in-a-superconducting-topological-semimetal/ Unusual upper critical fields in a superconducting topological semimetal - Nakajima Quantum... Mar 31, 2021 - Our paper on upper critical fields in a superconducting topological semimetal was accepted for publication in Journal of Physics: Condensed Matter. in a unusual upper critical fields https://meetings.aps.org/Meeting/MAR17/Session/H46.7 APS -APS March Meeting 2017 - Event - 3D integration of superconducting qubits with bump bonds:... aps march meeting https://publikationen.bibliothek.kit.edu/1000125803 Infrared hot-electron NbN superconducting photodetectors for i... infrared hot electron nbn superconducting https://scholars.uky.edu/es/publications/flux-periodicity-in-a-complex-superconducting-network/ Flux periodicity in a complex superconducting network - in a flux periodicity complex superconducting https://researchprofiles.ku.dk/en/publications/superconducting-state-of-the-organic-conductor-tmtsfsub2subclosub-2/ Superconducting state of the organic conductor (TMTSF)2ClO4 - University of Copenhagen Research... state of superconducting organic https://meetings-archive.aps.org/mar/2023/w75 Superconducting Qubit Junction Dynamics and Materials - GSNP Short Course on Adventures with... Archive of meeting recordings and transcripts https://condensedconcepts.blogspot.com/2017/04/is-it-unidentified-superconducting.html Condensed concepts: Is it an Unidentified Superconducting Object (USO)? If you look on the arXiv and in Nature journals there is a continuing stream of people claiming to observe superconductivity in some new mat... condensed concepts unidentified superconducting object https://meetings.aps.org/Meeting/MAR16/Session/Y53.10 APS -APS March Meeting 2016 - Event - Large superconducting double-gap, a pronounced pseudogap and... aps march meeting https://pure.psu.edu/en/publications/superconducting-fluctuations-in-the-destructive-regime-of-ultrath/ Superconducting fluctuations in the destructive regime of ultrathin, superconducting cylinders -... in the superconducting fluctuations destructive regime https://impact.ornl.gov/en/publications/effect-of-heat-treatments-on-superconducting-properties-and-conne/ Effect of heat treatments on superconducting properties and connectivity in K-doped BaFe2As2 -... https://ieeetv.ieee.org/prospects-scalable-quantum-computing-superconducting-circuits The Prospects for Scalable Quantum Computing with Superconducting Circuits - Applied... Dramatic progress has been made in the last decade and a half towards realizing solid-state systems for quantum information processing with superconducting... the prospects quantum computing scalable superconducting circuits https://arxiv.org/abs/2509.00962v1 [2509.00962v1] Lightweight Error-Correction Code Encoders in Superconducting Electronic Systems Abstract page for arXiv paper 2509.00962v1: Lightweight Error-Correction Code Encoders in Superconducting Electronic Systems error correction lightweight https://tqe.ieee.org/tag/superconducting-devices/ Superconducting devices Archives - IEEE Transactions on Quantum Engineering superconducting devices archives ieee transactions https://su.diva-portal.org/smash/record.jsf?faces-redirect=true&language=no&searchType=SIMPLE&query=&af=%5B%5D&aq=%5B%5B%5D%5D&aq2=%5B%5B%5D%5D&aqe=%5B%5D&pid=diva2%3A1254469&noOfRows=50&sortOrder=author_sort_asc&sortOrder2=title_sort_asc&onlyFullText=false&sf=all Screening and topological order in thin superconducting films order in screening topological thin superconducting https://www.emft.fraunhofer.de/en/research-development/flexible-systems/high-density-superconducting-interconnects.html High-density superconducting interconnects Fraunhofer research teams are working on extremely thin, flexible cables for superconducting quantum circuits, enabling a high density of signal connections. high density superconducting interconnects https://twin-cities.umn.edu/news-events/induced-flaws-quantum-materials-could-enhance-superconducting-properties Induced flaws in quantum materials could enhance superconducting properties | University of... In a surprising discovery, an international team of researchers, led by scientists in the University of Minnesota Center for Quantum Materials, found that... quantum materials induced flaws https://theses.gla.ac.uk/85678/ Control of hybrid superconducting quantum circuits based on advanced nanomaterials - Enlighten... quantum circuits based on advanced nanomaterials control hybrid https://scholars.lib.ntu.edu.tw/entities/publication/de6e7eb0-e132-4566-94cf-b6ae86e83225 Longitudinal and transverse hall resistivities in high-Tc superconducting films and superlattices longitudinal transverse hall https://www.prnewswire.com/news-releases/global-13-bn-superconducting-wire-market-2017-2022-focus-on-electronics-energy-scientific-and-medical-equipment-automotive--others-300573802.html Global $1.3 Bn Superconducting Wire Market 2017-2022: Focus on Electronics, Energy, Scientific and... /PRNewswire/ -- The "Global Superconducting Wire Market - Forecasts from 2017 to 2022" report has been added to Research and Markets' offering. The global... https://ntrs.nasa.gov/citations/20170007989 Static Measurements on HTS Coils of Fully Superconducting AC Electric Machines for Aircraft... The NASA Glenn Research Center (GRC) has been developing the high efficiency and high-power density superconducting (SC) electric machines in full support of... https://www.chemphys.lu.se/jens-uhlig/publication/e65f53da-0364-46d7-98b0-2d1b2cf665b8 First application of superconducting transition-edge sensor microcalorimeters to hadronic atom... first application superconducting transition https://events.msu.edu/main.php?view=event&eventid=1611067123257&timebegin=2021-01-20%2016:10:00 MSU Events Calendar - National Superconducting Cyclotron Laboratory Seminar events calendar msu national superconducting cyclotron https://news.mit.edu/2014/cheaper-superconducting-computer-chips-1017 Superconducting circuits, simplified | MIT News | Massachusetts Institute of Technology New circuit design could unlock the power of experimental superconducting computer chips. mit news superconducting circuits simplified massachusetts https://hsbiblio.uni-tuebingen.de/xmlui/handle/10900/37758?show=full Structural characterization and structure-property correlation of nanostructured superconducting... structural characterization structure property correlation superconducting https://dukespace.lib.duke.edu/items/6bcd8eea-5725-4807-8680-2ad1c87867c4 Quantum Hall-based superconducting interference device. We present a study of a graphene-based Josephson junction with dedicated side gates carved from the same sheet of graphene as the junction itself. These side... quantum hall based superconducting interference https://www.repository.cam.ac.uk/items/b85f2972-1025-4a43-9de1-e52a944bc583 Engineering Properties of Superconducting Materials Taking a technology from the laboratory to industry is a long and resource-consuming process. Discovered more than a century ago, the phenomenon of... engineering properties superconducting materials https://publikationen.bibliothek.kit.edu/1000122841 Commissioning experience with commercial superconducting undul... commissioning experience commercial superconducting https://www.phys.ntu.edu.tw/enphysics/News_Photo_Content_n_39664_s_233914.html Experimental Implementation of a Superconducting Quantum Computer of a experimental implementation superconducting quantum https://www.sciencealert.com/bismuth-is-a-superconductor-but-it-goes-against-our-current-understanding-of-the-phenomenon Superconducting Bismuth Is Real, And It's Forcing Us to Rethink The Nature of Superconductivity :... Dec 2, 2016 - Bismuth is one of the weirdest-looking elements on the Periodic Table, but its internal properties just got even stranger. https://impact.ornl.gov/en/publications/parallel-spin-stripes-and-their-coexistence-with-superconducting-/ Parallel spin stripes and their coexistence with superconducting ground states at optimal and high... https://research.ibm.com/publications/detection-of-temporal-fluctuation-in-superconducting-qubits-for-quantum-error-mitigation Detection of temporal fluctuation in superconducting qubits for quantum error mitigation for... Detection of temporal fluctuation in superconducting qubits for quantum error mitigation for Applied Physics Letters by Yuta Hirasaki et al. superconducting qubits quantum error detection temporal fluctuation https://edu.epfl.ch/coursebook/en/advanced-superconducting-magnet-technologies-PHYS-476 Advanced superconducting magnet technologies - PHYS-476 - EPFL The course will focus on the technologies related to the practical use of superconductors, from the manufacturing to their exploitation. The course also... advanced superconducting magnet technologies phys https://www.utwente.nl/en/tnw/ems/research/sust/ac/ AC loss and stability of superconducting cables | High Current Superconductivity | Energy,... The cabled superconductors to be applied in ITER have to withstand enormous electromagnetic forces and fast ramping magnet fields. Important research on this... high current ac loss stability https://meetings-archive.aps.org/smt/2025/mar-b17/ Superconducting Cavity-Qubit Architectures I - APS Global Physics Summit 2025 Archive of meeting recordings and transcripts aps global physics summit superconducting cavity qubit architectures https://www.scirp.org/reference/ReferencesPapers?ReferenceID=1964812 Abrikosov, A.A. (1957) The Magnetic Properties of Superconducting Alloys. Journal of Physics and... Abrikosov, A.A. (1957) The Magnetic Properties of Superconducting Alloys. Journal of Physics and Chemistry of Solids, 2, 199-208. magnetic properties https://news.cornell.edu/stories/2021/05/superconducting-quantum-material-has-organic-twist Superconducting quantum material has an organic twist | Cornell Chronicle An interdisciplinary team of Cornell researchers has created a cohort of new quantum metamaterials that can achieve superconductivity at temperatures... superconducting quantum material organic twist https://www.sciencedaily.com/releases/2023/05/230524181901.htm Scientists find evidence for new superconducting state in Ising superconductor | ScienceDaily In a ground-breaking experiment, scientists have discovered the existence of a superconductive state that was first predicted in 2017. This discovery could... find evidence for new scientists https://collaborate.princeton.edu/en/publications/design-of-core-and-edge-thomson-scattering-systems-for-korea-supe/ Design of core and edge Thomson scattering systems for Korea Superconducting Tokamak Advanced... https://intra.kth.se/en/aktuellt/kalender/superconducting-surfaces-solitons-and-skyrmions-1.1334915?date=2024-05-13&orgdate=2024-04-19&length=1&orglength=257 Superconducting surfaces, solitons and skyrmions | KTH superconducting surfaces kth https://www.ims.kit.edu/14_2466.php KIT - IMS - Institut - Mitarbeiter - Superconducting Electronics kit ims institut mitarbeiter superconducting https://research.tudelft.nl/en/publications/microwave-response-and-spin-waves-in-superconducting-ferromagnets/ Microwave response and spin waves in superconducting ferromagnets - TU Delft Research Portal https://research.ibm.com/publications/quadratic-temperature-dependence-of-the-in-plane-resistivity-in-superconducting-ndlessinfgreater185lessinfgreatercuolessinfgreater4lessinfgreater-evidence-for-fermi-liquid-normal-state Quadratic temperature dependence of the in-plane resistivity in superconducting Nd1.85CuO4 -... temperature dependence of the quadratic https://arxiv.org/abs/1904.10132 [1904.10132] Realization of a Carbon-Nanotube-Based Superconducting Qubit Abstract page for arXiv paper 1904.10132: Realization of a Carbon-Nanotube-Based Superconducting Qubit of a carbon nanotube realization based superconducting https://impact.ornl.gov/en/publications/spatially-resolved-superconducting-nanowire-single-photon-detecto/ Spatially resolved superconducting nanowire single photon detector rise-time analysis - Oak Ridge... single photon detector https://cordis.europa.eu/article/id/92116-superconducting-and-ferromagnetic-ingredients-for-nanohybrids Superconducting and ferromagnetic ingredients for nanohybrids | LoDiHybrids Project | Results in... The collective properties of hybrid systems of nanomaterials are very different from those of the individual components. EU-funded... project results superconducting ingredients https://meetings-archive.aps.org/damop/2010/w2/4/ Quantum simulation of arbitrary Hamiltonians with superconducting circuits - Welcome Reception While advances are continually being made in the computational treatment of atomic and molecular scattering on classical computers, the computational costs grow quantum simulation arbitrary superconducting circuits welcome https://pure.psu.edu/en/publications/electromechanical-modeling-of-nbsub3subsn-superconducting-wires-s/ Electromechanical Modeling of Nb3Sn Superconducting Wires Subjected to Periodic Bending Strain -... electromechanical modeling superconducting https://publikationen.bibliothek.kit.edu/240010610 Superconducting accelerator structures for medium energy protons medium energy superconducting accelerator structures protons https://publikationen.bibliothek.kit.edu/1000041337 Magnetic field measurement facility for superconducting undula... magnetic field measurement facility superconducting https://collaborate.princeton.edu/en/projects/autonomous-error-protection-in-superconducting-circuits/ Autonomous Error Protection in Superconducting Circuits - Princeton University autonomous error protection superconducting circuits https://meetings-archive.aps.org/mar/2010/j40/7/ Identifying the origin of Superconducting pairing in the QCP vicinity by scaling analysis of... In the phase diagram of 2D Hubbard model describing the physics of high temperature superconductor, the superconducting dome at the vicinity of the quantum crit the origin https://research.monash.edu/en/projects/nanoscale-superconducting-systems-foundations-and-applications/ Nanoscale superconducting systems: Foundations and applications - Monash University nanoscale superconducting systems foundations applications https://meetings.aps.org/Meeting/MAR19/Session/L26.12 APS -APS March Meeting 2019 - Event - Measuring Quantum Noise Limits in Superconducting Digital... aps march meeting https://databank.illinois.edu/datasets/IDB-1757317 Data for "Generic character of charge and spin density waves in superconducting cuprates" |... https://meetings-archive.aps.org/mar/2012/h29/13/ Ground State Misidentification in Superconducting Qubits - Instrumentation of Molecular Imaging on... To achieve fault tolerant quantum computation, it is necessary to maximize measurement fidelity and minimize readout-induced measurement errors. A new protocol superconducting qubits molecular imaging ground state misidentification https://meetings.aps.org/Meeting/MAR22/Session/N71.2 APS -APS March Meeting 2022 - Event - Muon spin rotation studies of magnetism in superconducting... aps march meeting https://research.ibm.com/publications/high-frequency-vortex-critical-dynamics-of-superconducting-amorphous-molessinfgreater3lessinfgreatersi-fillms High-frequency vortex critical dynamics of superconducting amorphous Mo3Si fillms for International... high frequency https://meetings-archive.aps.org/mar/2007/l9/14/ Interaction of vortices in thin superconducting films and Berezinskii-Kosterlitz-Thouless... The precondition for the BKT transition in thin superconducting films, the logarithmic intervortex interaction, is satisfied at distances short relative to $\La interaction vortices thin https://research.ibm.com/publications/elimination-of-the-edge-effect-in-superconducting-indium-and-tin-films Elimination of the edge effect in superconducting indium and tin films for Journal of Applied... Elimination of the edge effect in superconducting indium and tin films for Journal of Applied Physics by I. Ames et al. https://collaborate.princeton.edu/en/publications/observation-of-a-low-symmetry-crystal-structure-for-superconducti-2/ Observation of a low-symmetry crystal structure for superconducting MgCNi3 by Ni K-edge x-ray... https://nuc.berkeley.edu/superconducting-magnets-and-the-path-to-fusion-energy/ Superconducting Magnets and the Path to Fusion Energy superconducting magnets and the path fusion energy https://www.phys.ntu.edu.tw/enphysics/News_Photo_Content_n_39664_s_218845.html Nanoscale Gap-Plasmon-Enhanced Superconducting Photon Detectors at Single-Photon Level nanoscale gap plasmon enhanced superconducting