Results 71 to 80 of about 41,273 (213)
Nanocrystal Quality–Controlled Scintillation in Porous YAG:Ce Aerogels
Advanced Optical Materials, EarlyView.High‐temperature thermal treatment of YAG:Ce nanoscintillator aerogels increases light yield under ionizing radiation by up to eightfold without affecting timing performance. Additionally, low‐temperature atmospheric treatments reversibly modify the cerium oxidation state, revealing strong defect sensitivity and offering new strategies to optimize ...
Pavlo Mai +11 more
wiley +1 more source
Angewandte Chemie, EarlyView.A series of donor‐attached brominated chiral luminescent radicals (CzTTBrM, 2CzTTBrM, and 3CzTTBrM) was synthesized, showing red to near‐infrared (NIR) circularly polarized luminescence (CPL) with exceptionally high PLQY of up to 76% and markedly enhanced CPL brightness (BCPL). Doping into polystyrene microspheres further yields whispering gallery mode
Kazuhiro Nakamura +14 more
wiley +2 more sources
Quantum metrology with cold atomic ensembles
EPJ Web of Conferences, 2013 Quantum metrology uses quantum features such as entanglement and squeezing to improve the sensitivity of quantum-limited measurements. Long established as a valuable technique in optical measurements such as gravitational-wave detection, quantum ...
Mitchell Morgan W. +6 more
doaj +1 more source
Results in Physics, 2023 The deterioration of precision caused by quantum decoherence in dissipative environments is a longstanding problem in the development of quantum metrology.
Jie Tang +7 more
doaj +1 more source
Differential Evolution for Many-Particle Adaptive Quantum Metrology [PDF]
, 2013 We devise powerful algorithms based on differential evolution for adaptive many-particle quantum metrology. Our new approach delivers adaptive quantum metrology policies for feedback control that are orders-of-magnitude more efficient and surpass the few-
Crosnier, Cécile +3 more
core +3 more sources
Study of Free‐Space Optical Quantum Network: Review and Prospectives
Advanced Science, EarlyView.Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley +1 more source
Quantum correlations for anonymous metrology [PDF]
Quantum, 2019 We introduce the task of anonymous metrology, in which a physical parameter of an object may be determined without revealing the object's location. Alice and Bob share a correlated quantum state, with which one of them probes the object.
A. J. Paige, Benjamin Yadin, M. S. Kim
doaj +1 more source
, 2016 Quantum metrology exploits entangled states of particles to improve sensing precision beyond the limit achievable with uncorrelated particles. All previous methods required detection noise levels below this standard quantum limit to realize the benefits ...
Engelsen, N. J. +3 more
core +1 more source
Advanced Science, EarlyView.A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim +8 more
wiley +1 more source
Stability optimization based on high-resolution spatial thermal distribution of a single 174Yb+ ion
Shenzhen Daxue xuebao. Ligong banTrapped ion systems play a vital role in fields such as quantum information processing and optical frequency standards. Low-energy, highly stable trapped ions enable precise quantum manipulation and significantly reduce Doppler effect.
NIU Haipo +5 more
doaj +1 more source