Results 41 to 50 of about 1,995,098 (263)
Quantum nonlinear spectroscopy of single nuclear spins
Nature Communications, 2022 Signals that look the same from their low-order correlations can often be distinguished by looking at higher-order ones. Here, the authors exploit the sensitivity of quantum nonlinear spectroscopy to fourth-order correlations to identify Gaussian noises,
Jonas Meinel +9 more
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Robustness of quantum coherence and quantum criticality in spin-1 many-body system
Physics Open, 2023 The tripartite quantum coherence for spin-12 and bipartite quantum coherence for spin-1 many-body systems are studied with the quantum renormalization group method to investigate the quantum criticality behaviour of both systems. We find both spin-12 and
Wajid Joyia +3 more
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Steered quantum coherence as a signature of quantum phase transitions in spin chains [PDF]
Physical Review A, 2020 We propose to use the steered quantum coherence (SQC) as a signature of quantum phase transitions (QPTs). By considering various spin chain models, including the transverse-field Ising model, \textit{XY} model, and \textit{XX} model with three-spin ...
Ming‐Liang Hu, Yun Gao, H. Fan
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Experimental Direct Measurement of the Relative Entropy of Coherence
Photonics, 2023 Quantum coherence is the most distinguished feature of quantum mechanics, which characterizes the superposition properties of quantum states. It plays a critical role in various fields, ranging from quantum information technology to quantum biology ...
Xufeng Huang +3 more
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Direct estimation of quantum coherence by collective measurements [PDF]
npj Quantum Information, 2020 The recently established resource theory of quantum coherence allows for a quantitative understanding of the superposition principle, with applications reaching from quantum computing to quantum biology. While different quantifiers of coherence have been
Yuan Yuan +6 more
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Experimental Investigation of Quantum Uncertainty Relations With Classical Shadows
Frontiers in Physics, 2022 The quantum component in uncertainty relation can be naturally characterized by the quantum coherence of a quantum state, which is of paramount importance in quantum information science.
Lu Liu, Ting Zhang, Xiao Yuan, He Lu
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Coherent Quantum Tomography [PDF]
SIAM Journal on Mathematical Analysis, 2016 33 pages, no ...
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Quantum speed limits for information and coherence [PDF]
New Journal of Physics, 2021 The quantum speed limit indicates the maximal evolution speed of the quantum system. In this work, we determine speed limits on the informational measures, namely the von Neumann entropy, maximal information, and coherence of quantum systems evolving ...
B. Mohan, Siddhartha Das, A. Pati
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Single-cycle surface plasmon polaritons on a bare metal wire excited by relativistic electrons
Nature Communications, 2016 Here, the authors demonstrate how ultra-short bunches of relativistic electrons produce coherent transition radiation at the tip of a thin wire. The radiation then propagates as a powerful surface plasmon polariton along the wire, illustrating the ...
W.P.E.M. op ‘t Root +3 more
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Quantum coherence and quantum phase transitions [PDF]
Scientific Reports, 2016 AbstractWe study the connections between local quantum coherence (LQC) based on Wigner-Yanase skew information and quantum phase transitions (QPTs). When applied on the one-dimensional Hubbard, XY spin chain with three-spin interaction and Su-Schrieffer-Heeger models, the LQC and its derivatives are used successfully to detect different types of QPTs ...
Yan-Chao Li, Hai-Qing Lin
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