Results 101 to 110 of about 123,258 (197)

Time evolution of multi-party entanglement signals

Journal of High Energy Physics
We study the real-time dynamics of multi-party entanglement signals in chaotic quantum many-body systems including but not necessarily restricted to holographic conformal field theories.
Vijay Balasubramanian, Hanzhi Jiang, Simon F. Ross   +2 more
doaj   +1 more source

Genuinely accessible and inaccessible entanglement in Schwarzschild black hole

Physics Letters B
The genuine entanglement of Dirac fields for an N-partite system is investigated in Schwarzschild spacetime and the analysis is carried out using the single-mode approximation.
Shu-Min Wu, Xiao-Wei Teng, Jin-Xuan Li, Si-Han Li, Tong-Hua Liu, Jie-Ci Wang   +5 more
doaj   +1 more source

Quantifying entanglement for unknown quantum states via artificial neural networks

Scientific Reports
Quantum entanglement acts as a crucial part in quantum computation and quantum information, hence quantifying unknown entanglement is an important task. Due to the fact that the amount of entanglement cannot be achieved directly by measuring any physical
Guo-Zhu Pan, Ming Yang, Jian Zhou, Hao Yuan, Chun Miao, Gang Zhang   +5 more
doaj   +1 more source

The fate of entanglement

SciPost Physics
Quantum entanglement manifests itself in non-local correlations between the constituents of a system. In its simplest realization, a measurement on one subsystem is affected by a prior measurement on its partner, irrespective of their separation. For multiple parties, purely collective types of entanglement exist but their detection, even theoretically,
Gilles Parez, William Witczak-Krempa
openaire   +2 more sources

Quantifying the unextendibility of entanglement

New Journal of Physics
Entanglement is a striking feature of quantum mechanics, and it has a key property called unextendibility. In this paper, we present a framework for quantifying and investigating the unextendibility of general bipartite quantum states.
Kun Wang, Xin Wang, Mark M Wilde
doaj   +1 more source

Superselection-resolved entanglement in lattice gauge theories: a tensor network approach

Journal of High Energy Physics
Lattice gauge theories (LGT) play a central role in modern physics, providing insights into high-energy physics, condensed matter physics, and quantum computation.
Noa Feldman, Johannes Knaute, Erez Zohar, Moshe Goldstein   +3 more
doaj   +1 more source

A critical state under weak measurement is not critical

Journal of High Energy Physics
Critical systems host nontrivial entanglement structure that is generally sensitive to additional couplings. In the present work, we study the effect of weak measurements on the entanglement Hamiltonian of massless free fermions which are prepared in ...
Qicheng Tang, Xueda Wen
doaj   +1 more source

On the Physical Explanation for Quantum Computational Speedup [PDF]

The aim of this dissertation is to clarify the debate over the explanation of quantum speedup and to submit, for the reader's consideration, a tentative resolution to it.
Cuffaro, Michael E.
core  

Quantum Information in Geometric Quantum Mechanics [PDF]

, 2011
A fundamental starting point in quantum information theory is the consideration of the von Neumann entropy and its generalization to relative quantum entropies.
Volkert, Georg Friedrich
core  

What constitutes valid evidence of causation? Gas stoves and childhood asthma revisited

Global Epidemiology
Louis Anthony Cox, Jr.
doaj   +1 more source