Results 21 to 30 of about 304,874 (299)

Shaping contours of entanglement islands in BCFT

open access: yesJournal of High Energy Physics, 2022
In this paper, we study the fine structure of entanglement in holographic two-dimensional boundary conformal field theories (BCFT) in terms of the spatially resolved quasilocal extension of entanglement entropy — entanglement contour.
Dmitry S. Ageev
doaj   +1 more source

Entanglement of indistinguishable particles in condensed matter physics [PDF]

open access: yes, 2006
The concept of entanglement in systems where the particles are indistinguishable has been the subject of much recent interest and controversy. In this paper we study the notion of entanglement of particles introduced by Wiseman and Vaccaro [Phys.
Andrew C. Doherty   +5 more
core   +3 more sources

Entangled histories [PDF]

open access: yesPhysica Scripta, 2016
We introduce quantum history states and their mathematical framework, thereby reinterpreting and extending the consistent histories approach to quantum theory. Through thought experiments, we demonstrate that our formalism allows us to analyze a quantum version of history in which we reconstruct the past by observations. In particular, we can pass from
Cotler, Jordan S., Wilczek, Frank
openaire   +4 more sources

Is `entanglement' always entangled? [PDF]

open access: yesJournal of Optics B: Quantum and Semiclassical Optics, 2002
Entanglement, including ``quantum entanglement,'' is a consequence of correlation between objects. When the objects are subunits of pairs which in turn are members of an ensemble described by a wave function, a correlation among the subunits induces the mysterious properties of ``cat-states.'' However, correlation between subsystems can be present from
openaire   +2 more sources

Device-independent characterization of entanglement based on bell nonlocality

open access: yesFundamental Research, 2021
Quantum entanglement, has been acknowledged as a precious resource due to its inherent nonclassical correlations between subsystems. These quantum correlations have the potential for many quantum processes, including canonical ones: quantum cryptography,
Geng Chen   +4 more
doaj   +1 more source

Genuine multipartite entanglement measures based on multi-party teleportation capability

open access: yesScientific Reports, 2023
Quantifying entanglement is vital to understand entanglement as a resource in quantum information processing, and many entanglement measures have been suggested for this purpose.
Minjin Choi, Eunok Bae, Soojoon Lee
doaj   +1 more source

Equivalence of critical scaling laws for many-body entanglement in the Lipkin-Meshkov-Glick model [PDF]

open access: yes, 2008
We establish a relation between several entanglement properties in the Lipkin-Meshkov-Glick model, which is a system of mutually interacting spins embedded in a magnetic field. We provide analytical proofs that the single-copy entanglement and the global
A. B. Zamolodchikov   +5 more
core   +2 more sources

Entanglement Renormalization [PDF]

open access: yesPhysical Review Letters, 2007
4 pages, 4 figures, updated ...
openaire   +4 more sources

Partial-norm of entanglement: entanglement monotones that are not monogamous

open access: yesNew Journal of Physics, 2023
Quantum entanglement is known to be monogamous, i.e. it obeys strong constraints on how the entanglement can be distributed among multipartite systems. Almost all the entanglement monotones so far are shown to be monogamous.
Yu Guo
doaj   +1 more source

Entanglement classification via operator size

open access: yesSciPost Physics Core, 2023
In this work, multipartite entanglement is classified by polynomials. I show that the operator size is closely related to the entanglement structure. Given a generic quantum state, I define a series of subspaces generated by operators of different sizes ...
Qi-Feng Wu
doaj   +1 more source

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