Matches in SemOpenAlex for { <https://semopenalex.org/work/W2963648889> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2963648889 abstract "We study the fate of quantum correlations at finite temperature in the two-dimensional toric code using the logarithmic entanglement negativity. We are able to obtain exact results that give us insight into how thermal excitations affect quantum entanglement. The toric code has two types of elementary excitations (defects) costing different energies. We show that an $O(1)$ density of the lower energy defect is required to degrade the zero-temperature entanglement between two subsystems in contact with one another. However, one type of excitation alone is not sufficient to kill all quantum correlations, and an $O(1)$ density of the higher energy defect is required to cause the so-called sudden death of the negativity. Interestingly, if the energy cost of one of the excitations is taken to infinity, quantum correlations survive up to arbitrarily high temperatures, a feature that is likely shared with other quantum spin liquids and frustrated systems in general, when projected down to their low-energy states. We demonstrate this behavior both for small subsystems, where we can prove that the negativity is a necessary and sufficient condition for separability, as well as for extended subsystems, where it is only a necessary condition. We further observe that the negativity per boundary degree of freedom at a given temperature increases (parametrically) with the size of the boundary, and that quantum correlations between subsystems with extended boundaries are more robust to thermal fluctuations." @default.
- W2963648889 created "2019-07-30" @default.
- W2963648889 creator A5010150198 @default.
- W2963648889 creator A5049913020 @default.
- W2963648889 date "2018-03-05" @default.
- W2963648889 modified "2023-10-16" @default.
- W2963648889 title "Entanglement Negativity and Sudden Death in the Toric Code at Finite Temperature" @default.
- W2963648889 hasPublicationYear "2018" @default.
- W2963648889 type Work @default.
- W2963648889 sameAs 2963648889 @default.
- W2963648889 citedByCount "0" @default.
- W2963648889 crossrefType "journal-article" @default.
- W2963648889 hasAuthorship W2963648889A5010150198 @default.
- W2963648889 hasAuthorship W2963648889A5049913020 @default.
- W2963648889 hasConcept C121040770 @default.
- W2963648889 hasConcept C121332964 @default.
- W2963648889 hasConcept C121864883 @default.
- W2963648889 hasConcept C134306372 @default.
- W2963648889 hasConcept C15744967 @default.
- W2963648889 hasConcept C164705383 @default.
- W2963648889 hasConcept C2993353509 @default.
- W2963648889 hasConcept C33923547 @default.
- W2963648889 hasConcept C39927690 @default.
- W2963648889 hasConcept C42704618 @default.
- W2963648889 hasConcept C58053490 @default.
- W2963648889 hasConcept C62354387 @default.
- W2963648889 hasConcept C62520636 @default.
- W2963648889 hasConcept C71924100 @default.
- W2963648889 hasConcept C7453019 @default.
- W2963648889 hasConcept C77805123 @default.
- W2963648889 hasConcept C84114770 @default.
- W2963648889 hasConcept C84883863 @default.
- W2963648889 hasConcept C97355855 @default.
- W2963648889 hasConceptScore W2963648889C121040770 @default.
- W2963648889 hasConceptScore W2963648889C121332964 @default.
- W2963648889 hasConceptScore W2963648889C121864883 @default.
- W2963648889 hasConceptScore W2963648889C134306372 @default.
- W2963648889 hasConceptScore W2963648889C15744967 @default.
- W2963648889 hasConceptScore W2963648889C164705383 @default.
- W2963648889 hasConceptScore W2963648889C2993353509 @default.
- W2963648889 hasConceptScore W2963648889C33923547 @default.
- W2963648889 hasConceptScore W2963648889C39927690 @default.
- W2963648889 hasConceptScore W2963648889C42704618 @default.
- W2963648889 hasConceptScore W2963648889C58053490 @default.
- W2963648889 hasConceptScore W2963648889C62354387 @default.
- W2963648889 hasConceptScore W2963648889C62520636 @default.
- W2963648889 hasConceptScore W2963648889C71924100 @default.
- W2963648889 hasConceptScore W2963648889C7453019 @default.
- W2963648889 hasConceptScore W2963648889C77805123 @default.
- W2963648889 hasConceptScore W2963648889C84114770 @default.
- W2963648889 hasConceptScore W2963648889C84883863 @default.
- W2963648889 hasConceptScore W2963648889C97355855 @default.
- W2963648889 hasLocation W29636488891 @default.
- W2963648889 hasOpenAccess W2963648889 @default.
- W2963648889 hasPrimaryLocation W29636488891 @default.
- W2963648889 hasRelatedWork W1494780472 @default.
- W2963648889 hasRelatedWork W1956759529 @default.
- W2963648889 hasRelatedWork W1969363245 @default.
- W2963648889 hasRelatedWork W1973309660 @default.
- W2963648889 hasRelatedWork W1998855414 @default.
- W2963648889 hasRelatedWork W2021244208 @default.
- W2963648889 hasRelatedWork W2030112117 @default.
- W2963648889 hasRelatedWork W2039600505 @default.
- W2963648889 hasRelatedWork W2089508957 @default.
- W2963648889 hasRelatedWork W2478882162 @default.
- W2963648889 hasRelatedWork W2888053895 @default.
- W2963648889 hasRelatedWork W2964109117 @default.
- W2963648889 hasRelatedWork W2987270616 @default.
- W2963648889 hasRelatedWork W3029226469 @default.
- W2963648889 hasRelatedWork W3035705874 @default.
- W2963648889 hasRelatedWork W3103248090 @default.
- W2963648889 hasRelatedWork W3104832107 @default.
- W2963648889 hasRelatedWork W3137600108 @default.
- W2963648889 hasRelatedWork W3198719794 @default.
- W2963648889 hasRelatedWork W3201965221 @default.
- W2963648889 hasVolume "2018" @default.
- W2963648889 isParatext "false" @default.
- W2963648889 isRetracted "false" @default.
- W2963648889 magId "2963648889" @default.
- W2963648889 workType "article" @default.