Article
Physics, Multidisciplinary
E. T. Mannila, V. F. Maisi, J. P. Pekola
Summary: A self-calibrating detector of Cooper pair depairing in a superconductor was proposed and experimentally demonstrated, showing quantitative agreement with experiment. The device was used to measure high-frequency phonons with a measurable signal resulting from less than 10 fW of dissipated power, showing potential applications in high-frequency phonon detection.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Marco Colangelo, Alexander B. Walter, Boris A. Korzh, Ekkehart Schmidt, Bruce Bumble, Adriana E. Lita, Andrew D. Beyer, Jason P. Allmaras, Ryan M. Briggs, Alexander G. Kozorezov, Emma E. Wollman, Matthew D. Shaw, Karl K. Berggren
Summary: The optimization of superconducting materials and the improvement of nanofabrication process have enabled the demonstration of large-area superconducting nanowire single-photon detectors (SNSPDs) with unity internal detection efficiency (IDE) in the mid-infrared (mid-IR) band. The approach yields large-area meanders with minimal line-width roughness and reduced impact from constrictions, paving the way for high-efficiency SNSPDs in the mid-IR band with potential impacts on astronomy, imaging, and physical chemistry.
Article
Materials Science, Multidisciplinary
Rafael Luque Merino, Paul Seifert, Jose Duran Retamal, Roop K. Mech, Takashi Taniguchi, Kenji Watanabe, Kazuo Kadowaki, Robert H. Hadfield, Dmitri K. Efetov
Summary: A proof-of-concept nanodetector based on two-dimensional cuprate superconductor Bi2Sr2CaCu2O8-delta has been demonstrated to exhibit single-photon sensitivity at telecom wavelength at a record temperature of 20 K, paving the way for broader application of single-photon technologies.
Editorial Material
Physics, Multidisciplinary
Xin-Ping Dong, Xiao-Jing Lu, Ming Li, Zheng-Yin Zhao, Zhi-Bo Feng
Summary: An efficient strategy for accelerating the generation of photon Fock states in a superconducting circuit is presented, using counterdiabatic driving and modifying the Rabi drivings within a shortcut to adiabaticity framework to achieve high efficiency operation. This scheme offers a promising way for deterministic preparation of photon Fock states with superconducting quantum circuits, which is significantly less susceptible to decoherence effects compared to adiabatic operations.
Article
Astronomy & Astrophysics
F. Bossi, P. Branchini, B. Buonomo, V. Capirossi, A. P. Caricato, G. Chiodini, R. De Sangro, C. Di Giulio, D. Domenici, F. Ferrarotto, G. Finocchiaro, L. G. Foggetta, A. Frankenthal, M. Garattini, G. Georgiev, F. Giacchino, P. Gianotti, S. Ivanov, Sv. Ivanov, V. Kozhuharov, E. Leonardi, E. Long, M. Martino, I. Oceano, F. Oliva, G. C. Organtini, F. Pinna, G. Piperno, M. Raggi, I. Sarra, R. Simeonov, T. Spadaro, S. Spagnolo, E. Spiriti, D. Tagnani, C. Taruggi, P. Valente, E. Vilucchi
Summary: A measurement of the inclusive cross section of electron-positron annihilation to photons is presented using the PADME detector. The measurement is based on direct detection of the photon pair and is one of the most precise for positron energies below 1 GeV. It represents an intermediate step in the PADME goal of searching for dark sector particles and mediators weakly coupled to photons and electrons.
Article
Chemistry, Analytical
Wen Wu, Xiao Shan, Yaoqiang Long, Jing Ma, Kun Huang, Ming Yan, Yan Liang, Heping Zeng
Summary: In this paper, a 1-GHz gated InGaAs/InP SPAD with sinusoidal gating signals asynchronous to the incident pulsed laser is demonstrated for free-running single-photon detection. The SPAD achieves a count rate of up to 500 Mcount/s by quenching the photon-induced avalanche signals within 1 ns. However, the timing jitter is measured to be around 168 ps, larger than that of the SPAD with synchronous gates. The cause of the jitter deterioration is investigated by adjusting the delay between the gating signals and the incident pulsed laser.
Article
Chemistry, Multidisciplinary
Meng-hui Wang, Zhong-hua Cui, Sheng Wang, Quan Li, Jijun Zhao, Zhongfang Chen
Summary: Using a starlike Be6Au7- cluster as a building block, a two-dimensional binary metal material Be2Au monolayer was theoretically designed. The monolayer exhibits planar hexacoordinate motifs, rare Dirac node-loops, and phonon-mediated superconductivity with a critical temperature of 4.0 K that can be enhanced by compressive strain.
Article
Chemistry, Physical
Prajnashree Panda, Sudip Barman
Summary: The synthesis of 2D carbon nanosheets with sub-nanometer pore-rich microporous morphology and the understanding of their structure-performance relationship are crucial in the development of advanced supercapacitors and gas adsorption devices.
SUSTAINABLE ENERGY & FUELS
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
Haipeng Guo, Chuanchuan Yang, Xin Qin, Yunfeng Gao, Ziyuan Zheng, Hongbin Li
Summary: Experimental demonstration of up to 20 Mb/s transmission of AMCC signal with different modulation formats over 50 Gb/s PAM4 PON shows that the power penalty for PON signal in AMCC superimposition is lower than 1 dB.
2021 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Erkan Danaci, Handan Sakarya, Murat Arslan
Summary: This study focuses on obtaining impedance parameters from dimensional measurements of calculable impedance standards used at high frequencies up to 90 GHz, known as millimeter waves, including future 5G operating frequencies. It also includes an analysis of the effect of uncertainty in dimensional measurements on impedance calculation.
29TH IEEE CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS (SIU 2021)
(2021)
Article
Engineering, Multidisciplinary
Silvia Zorzetti, Luca Fanucci, Natalia Galindo Munoz, Manfred Wendt
MEASUREMENT SCIENCE and TECHNOLOGY
(2015)
Article
Physics, Nuclear
D. Caiazza, N. Catalan Lasheras, H. Mainaud Durand, M. Modena, C. Sanz, D. Tshilumba, V. Vlachakis, M. Wendt, S. Zorzetti
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2017)
Article
Quantum Science & Technology
Changqing Wang, Ivan Gonin, Anna Grassellino, Sergey Kazakov, Alexander Romanenko, Vyacheslav P. Yakovlev, Silvia Zorzetti
Summary: Frequency conversion between microwave and optical photons enables links between superconducting quantum processors and distributed quantum networks. We propose a platform for microwave-optical transduction based on superconducting radio-frequency (SRF) cavities coupled to electro-optic optical cavities to increase conversion efficiency.
NPJ QUANTUM INFORMATION
(2022)
Article
Instruments & Instrumentation
Silvia Zorzetti, Manfred Wendt, Helene Mainaud-Durand
Summary: In this paper, innovative calibration techniques are discussed for the beam diagnostic device - Beam Position Monitors (BPMs). The electromagnetic center of the resonant cavity BPM is detected using a stretched-wire measurement approach, and the alignment methodology is proven feasible with nanometric resolution.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
