Publisher's Note: Quantum-memory-assisted entropic uncertainty principle, teleportation, and entanglement witness in structured reservoirs [Phys. Rev. A86, 032338 (2012)]

2012 ◽  
Vol 86 (4) ◽  
Author(s):  
Ming-Liang Hu ◽  
Heng Fan
2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Huangjun Zhu

AbstractThe uncertainty principle imposes a fundamental limit on predicting the measurement outcomes of incompatible observables even if complete classical information of the system state is known. The situation is different if one can build a quantum memory entangled with the system. Zero uncertainty states (in contrast with minimum uncertainty states) are peculiar quantum states that can eliminate uncertainties of incompatible von Neumann observables once assisted by suitable measurements on the memory. Here we determine all zero uncertainty states of any given set of nondegenerate observables and determine the minimum entanglement required. It turns out all zero uncertainty states are maximally entangled in a generic case, and vice versa, even if these observables are only weakly incompatible. Our work establishes a simple and precise connection between zero uncertainty and maximum entanglement, which is of interest to foundational studies and practical applications, including quantum certification and verification.


2011 ◽  
Vol 7 (10) ◽  
pp. 752-756 ◽  
Author(s):  
Chuan-Feng Li ◽  
Jin-Shi Xu ◽  
Xiao-Ye Xu ◽  
Ke Li ◽  
Guang-Can Guo

2017 ◽  
Vol 14 (12) ◽  
pp. 125208 ◽  
Author(s):  
Jiadong Shi ◽  
Zhiyong Ding ◽  
Tao Wu ◽  
Juan He ◽  
Lizhi Yu ◽  
...  

2021 ◽  
Author(s):  
M.C. Parker ◽  
C. Jeynes

Abstract An entropic version of Liouville’s theorem is defined in terms of the conjugate variables (“hyperbolic position” and “entropic momentum”) of an entropic Hamiltonian. It is used to derive the Holographic Principle as applied to holomorphic structures that represent maximum entropy configurations. The Bekenstein-Hawking expression for black hole entropy is a consequence. Based on the entropic commutator derived from Liouville’s theorem and the same entropic conjugate variables, an entropic Uncertainty Principle (in units of Boltzmann’s constant) isomorphic to the kinematic Uncertainty Principle (in units of Planck’s constant) is also derived. These formal developments underpin the previous treatment of Quantitative Geometrical Thermodynamics (QGT) which has established (entirely on geometric entropy grounds) the stability of the double-helix, the double logarithmic spiral, and the sphere. Since in the QGT formalism the Boltzmann and Planck constants are quanta of quantities orthogonal to each other in Minkowski spacetime, a solution of the Schrödinger Equation is demonstrated isomorphic to a probability term of an entropic Partition Function, where both are defined by path integrals obeying the stationary principle: this isomorphism represents an important symmetry of the formalism. The geometry of a holomorphic structure must also exhibit at least C2 symmetry.


2012 ◽  
Vol 86 (4) ◽  
Author(s):  
Arun Kumar Pati ◽  
Mark M. Wilde ◽  
A. R. Usha Devi ◽  
A. K. Rajagopal ◽  
Sudha

2012 ◽  
Vol 7 (3) ◽  
pp. 259-260
Author(s):  
Kai-Min Duan ◽  
Chuan-Feng Li

2010 ◽  
Vol 6 (9) ◽  
pp. 659-662 ◽  
Author(s):  
Mario Berta ◽  
Matthias Christandl ◽  
Roger Colbeck ◽  
Joseph M. Renes ◽  
Renato Renner

2011 ◽  
Vol 7 (10) ◽  
pp. 757-761 ◽  
Author(s):  
Robert Prevedel ◽  
Deny R. Hamel ◽  
Roger Colbeck ◽  
Kent Fisher ◽  
Kevin J. Resch

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