Results 131 to 140 of about 1,078,579 (226)

A Scalable Platform for Massively Parallel Superconducting Single‐Photon Detection

Laser &Photonics Reviews, EarlyView.
One hundred independent superconducting nanowire detectors, each with efficiency up to 80.1–98.3%, are integrated into a single compact system operating below 2.1 K. This parallel architecture supports fully connected multi‐user quantum entanglement distribution, while its scalability opens new avenues in optical quantum computing, QKD networks ...
You Xiao, Zhen Wan, Dianpeng Wang, Jianjian Zhu, Huiqin Yu, Shuna Wang, Zhiyun Shu, Chaomeng Ding, Hongxin Xu, Jia Huang, Jiamin Xiong, Xiaoyu Liu, Lingyun Li, Lixing You, Hao Li   +14 more
wiley   +1 more source

Control-Enhanced Hamiltonian Optimization for Quantum Parameter Estimation in Many-Body Systems

Metrology
Quantum metrology uses the principles of quantum mechanics to improve the accuracy of parameter estimation so that it can surpass the classical limit.
Hong Tao
doaj   +1 more source

Heterogeneous Integration of Multi‐Band Mode‐Locked and Single‐Mode Lasers on an Extended Commercial SiN Platform

Laser &Photonics Reviews, EarlyView.
Micro‐transfer printing enables GaAs and InP gain materials to be integrated on a commercial silicon nitride photonic platform. The resulting chip supports O‐ and C‐band comb and single‐mode lasers, demonstrating a scalable route toward multi‐material, multi‐wavelength, and multifunctional integrated light sources.
Dongbo Wang, Tom Reep, Thi Ngoc Lam Tran, Stijn Poelman, Jing Zhang, Jose Carreira, Camiel Op de Beeck, Stijn Cuyvers, Michael Geiselmann, Maximilien Billet, Dries Van Thourhout, Gunther Roelkens, Bart Kuyken   +12 more
wiley   +1 more source

Dual‐Comb Spectroscopy With Fully Controlled Repetition Rate and Offset Frequency of Quantum Cascade Laser Frequency Combs

Laser &Photonics Reviews, EarlyView.
Independent control of the repetition rate and offset frequency is demonstrated in quantum cascade laser frequency combs using radio‐frequency injection and thermal tuning. A revised comb model anchored at optical frequencies captures the unique behavior under radio‐frequency injection and enables precise frequency control.
Jie Liu, Philip Skochinski, Lawrence Hughes, Yamac Dikmelik, Kevin Lascola, Gerard Wysocki   +5 more
wiley   +1 more source

Geometric invariants of quantum metrology

Physical Review A
We establish a previously unexplored conservation law for the Quantum Fisher Information Matrix (QFIM) expressed as follows; when the QFIM is constructed from a set of observables closed under commutation, i.e., a Lie algebra, the spectrum of the QFIM is invariant under unitary dynamics generated by these same operators.
Christopher Wilson, John Drew Wilson, Luke Coffman, Shah Saad Alam, Murray J. Holland   +4 more
openaire   +2 more sources

Construction optimization and functional applications of fluorescent nanodiamonds

Responsive Materials, EarlyView.
This review summarizes synthesis, surface modification and optical properties of fluorescent nanodiamonds. Their advances in quantum sensing, single‐photon emission and biomedicine are discussed, and existing challenges and future directions are presented.
Yunpeng Yang, Sen Zhang, Chao Chen, Wensi Yang, Zuanquan Chen, Rui Fan, Linlin Liu, Benjian Liu, Kang Liu, Zhibo Zhang, Bing Dai, Jiaqi Zhu   +11 more
wiley   +1 more source

A review of the research on decimal quantum resistor array

Diance yu yibiao
This paper reviews the manufacturing difficulties of decimal quantum resistor arrays and their applications and prospects in electrical metrology standardization. By analyzing the core principles of the quantum Hall effect, the advantages and differences
MENG Jing, BAI Jingfen, LI Zongrong, DUAN Xiaomeng, GENG Ailing   +4 more
doaj   +1 more source

Sodium‐Induced Process Window Expansion Enables High‐Performance Solution‐Processed CISSe Thin‐Film Solar Cells for Tandem Applications

Small, EarlyView.
Excess Na treatment in DMF‐based, solution‐processed CuIn(S,Se)2 solar cell fabrication dramatically widens the process window (air‐annealing temperature after spin‐coating), enabling high efficiencies that are otherwise attainable only within a narrow temperature range.
Ivan L. Opao, Yasir Siddique, Huyen Tran, Muhammad Rehan, Hung Van Tran, Jiseon Hwang, Inyoung Jeong, Donghyeop Shin, Ara Cho, Ahreum Lee, Soomin Song, Sungjun Hong, Inchan Hwang, Sangmin Lee, Seung Kyu Ahn, Kihwan Kim, Jihye Gwak, Junseop Byeon, SeJin Ahn   +18 more
wiley   +1 more source

Safeguarding the Photoluminescence of Silver Sulfide Nanocrystals in Biological Environments via Silica Shielding

Small, EarlyView.
Interactions with biomolecules can alter the photoluminescence of Ag2S nanocrystals, undermining near‐infrared imaging and thermometry. Incorporation into dendritic silica minimizes these interactions and preserves emission intensity, spectral response, and lifetime in plasma and whole blood. This shielding enables more reliable imaging and temperature
Alejandro Hernández Medel, Marina París Ogáyar, Livia Didonè, Peijiang Wang, Ramón Manzorro, Ana B. Hungría, Miriam Granado, Beatriz H. Juárez, Daniel Jaque, Emma Martín Rodríguez, Riccardo Marin, Célia T. Sousa   +11 more
wiley   +1 more source

Quantum metrology with a transmon qutrit

, 2018
Making use of coherence and entanglement as metrological quantum resources allows us to improve the measurement precision from the shot-noise or quantum limit to the Heisenberg limit.
Lebedev, A. V., G. Blatter, Shlyakhov, A. R., A. V. Lebedev, Blatter, G., V. V. Zemlyanov, M. V. Suslov, G. S. Paraoanu, Zemlyanov, V. V., Lesovik, G. B., Suslov, M. V., Paraoanu, G. S., G. B. Lesovik, A. R. Shlyakhov   +13 more
core   +1 more source