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Quantum fisher information transfer and distribution in a hierarchical environment
Results in PhysicsHow quantum information encoded into a quantum state is lost, or transferred when an interest quantum system is coupled to its environment, is a fundamental issue in quantum information processing.
Youneng Guo, Qinglong Tian
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Quantum Cramer–Rao Bound for a Massless Scalar Field in de Sitter Space
Universe, 2017 How precisely can we estimate cosmological parameters by performing a quantum measurement on a cosmological quantum state? In quantum estimation theory, the variance of an unbiased parameter estimator is bounded from below by the inverse of measurement ...
Marcello Rotondo, Yasusada Nambu
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About the quantum Fisher information of nearly pure quantum statistical models
, 2020 We address nearly pure quantum statistical models, i.e. situations where the information about a parameter is encoded in pure states weakly perturbed by the mixing with a parameter independent state, mimicking a weak source of noise.
Paris M. G. A.
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Scientific Reports, 2023 Thermomagnetic properties, and its effects on Fisher information entropy with Schioberg plus Manning-Rosen potential are studied using NUFA and SUSYQM methods in the presence of the Greene-Aldrich approximation scheme to the centrifugal term.
I. B. Okon +14 more
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Transactional Interpretation for the Principle of Minimum Fisher Information
Entropy, 2021 The principle of minimum Fisher information states that in the set of acceptable probability distributions characterizing the given system, it is best done by the one that minimizes the corresponding Fisher information.
Marcin Makowski +3 more
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Exponential time-scaling of estimation precision by reaching a quantum critical point
Physical Review Research, 2022 Quantum metrology refers to the use of quantum resources in parameter-estimation protocols, aiming at enhancing its precision. The quantum Fisher information is a key quantity in this context, setting the ultimate achievable precision with respect to ...
Louis Garbe +3 more
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Quantum information theory and the foundations of quantum mechanics
, 2004 This thesis is a contribution to the debate on the implications of quantum information theory for the foundational problems of quantum mechanics. In Part I an attempt is made to shed some light on the nature of information and quantum information theory.
Timpson, Christopher +3 more
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Optimal Estimation of Quantum Coherence by Bell State Measurement: A Case Study
, 2023 Quantum coherence is the most distinguished feature of quantum mechanics. As an important resource, it is widely applied to quantum information technologies, including quantum algorithms, quantum computation, quantum key distribution, and quantum ...
Yueping Niu +3 more
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Effect of terahertz irradiation on DNA damage repair in living cells
FEBS Open Bio, EarlyView.We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno +3 more
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Fisher information of a black hole spacetime
Journal of High Energy Physics, 2023 Relativistic quantum metrology is the study of optimal measurement procedures within systems that have both quantum and relativistic components. Here we use Unruh-DeWitt detectors coupled to a massless scalar field as probes of thermal parameters in ...
Everett Patterson, Robert B. Mann
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