Zobrazeno 1 - 10
of 227
pro vyhledávání: '"Yuan, Haidong"'
Publikováno v:
Adv. Quantum Technol. 2400094 (2024)
This tutorial introduces a systematic approach for addressing the key question of quantum metrology: For a generic task of sensing an unknown parameter, what is the ultimate precision given a constrained set of admissible strategies. The approach out
Externí odkaz:
http://arxiv.org/abs/2409.07068
Previous studies in quantum information have recognized that specific types of noise can encode information in certain applications. However, the role of noise in Quantum Hypothesis Testing (QHT), traditionally assumed to undermine performance and re
Externí odkaz:
http://arxiv.org/abs/2408.02282
Publikováno v:
Phys. Rev. A 109, 022604 (2024)
In quantum multiparameter estimation, multiple to-be-estimated parameters are encoded in a quantum dynamics system by a unitary evolution. As the parameters vary, the system may undergo a topological phase transition (TPT). In this paper, we investig
Externí odkaz:
http://arxiv.org/abs/2402.07089
Recent progress shows that a surface-acoustic-wave (SAW) cavity can not only induce quantum acoustic dynamics but also can form optomechanical-like systems. Its operating frequencies in the microwave band make it resistant to the thermal noise of sur
Externí odkaz:
http://arxiv.org/abs/2401.12457
Autor:
Li, Yue, Cheng, Xu, Wang, Lingna, Zhao, Xingyu, Hou, Waner, Li, Yi, Rehan, Kamran, Zhu, Mingdong, Yan, Lin, Qin, Xi, Peng, Xinhua, Yuan, Haidong, Lin, Yiheng, Du, Jiangfeng
Squeezing a quantum state along a specific direction has long been recognized as a crucial technique for enhancing the precision of quantum metrology by reducing parameter uncertainty. However, practical quantum metrology often involves the simultane
Externí odkaz:
http://arxiv.org/abs/2312.10379
Publikováno v:
npj Quantum Inf 10, 98 (2024)
How well can multiple incompatible observables be implemented by a single measurement? This is a fundamental problem in quantum mechanics with wide implications for the performance optimization of numerous tasks in quantum information science. While
Externí odkaz:
http://arxiv.org/abs/2310.11925
Publikováno v:
New J. Phys. 25, 113026 (2023)
Quantum hypothesis testing plays a pivotal role in quantum technologies, making decisions or drawing conclusions about quantum systems based on observed data. Recently, quantum control techniques have been successfully applied to quantum hypothesis t
Externí odkaz:
http://arxiv.org/abs/2309.05592
Publikováno v:
Phys. Rev. A 106, 042440 (2022)
Most previous efforts of quantum error correction focused on either extending classical error correction schemes to the quantum regime by performing a perfect correction on a subset of errors, or seeking a recovery operation to maximize the fidelity
Externí odkaz:
http://arxiv.org/abs/2309.01434
Precise control of hyperfine matterwaves via Raman excitations is instrumental to a class of atom-based quantum technology. We investigate the Raman spinor control technique for alkaline atoms in an intermediate regime of single-photon detuning where
Externí odkaz:
http://arxiv.org/abs/2305.17610
Autor:
Liu, Ran, Wu, Ze, Yang, Xiaodong, Li, Yuchen, Zhou, Hui, Chen, Yuquan, Yuan, Haidong, Peng, Xinhua, Du, Jiangfeng
By utilizing quantum mechanical effects, such as superposition and entanglement, quantum metrology promises higher precision than the classical strategies. It is, however, practically challenging to realize the quantum advantages. This is mainly due
Externí odkaz:
http://arxiv.org/abs/2211.12296