Gaussian intrinsic entanglement for states with partial minimum uncertainty

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73585891" target="_blank" >RIV/61989592:15310/18:73585891 - isvavai.cz</a>

Result on the web

<a href="https://journals.aps.org/pra/pdf/10.1103/PhysRevA.97.012305" target="_blank" >https://journals.aps.org/pra/pdf/10.1103/PhysRevA.97.012305</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevA.97.012305" target="_blank" >10.1103/PhysRevA.97.012305</a>

Result language

angličtina

Original language name

Gaussian intrinsic entanglement for states with partial minimum uncertainty

Original language description

We develop a recently proposed theory of a quantifier of bipartite Gaussian entanglement called Gaussian intrinsic entanglement (GIE) [L. Mista, Jr. and R. Tatham, Phys. Rev. Lett. 117, 240505 (2016)]. Gaussian intrinsic entanglement provides a compromise between computable and physically meaningful entanglement quantifiers and so far it has been calculated for two-mode Gaussian states including all symmetric partialminimumuncertainty states, weakly mixed asymmetric squeezed thermal states with partial minimum uncertainty, and weakly mixed symmetric squeezed thermal states. We improve the method of derivation of GIE and show that all previously derived formulas for GIE of weakly mixed states in fact hold for states with higher mixedness. In addition, we derive analytical formulas for GIE for several other classes of two-mode Gaussian states with partial minimum uncertainty. Finally, we show that, like for all previously known states, also for all currently considered states the GIE is equal to Gaussian Renyi-2 entanglement of formation. This finding strengthens a conjecture about the equivalence of GIE and Gaussian Renyi-2 entanglement of formation for all bipartite Gaussian states.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review A

ISSN

2469-9926

e-ISSN

—

Volume of the periodical

97

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

20

Pages from-to

"012305-1"-"012305-20"

UT code for WoS article

000419702700001

EID of the result in the Scopus database

2-s2.0-85042053797