Matches in SemOpenAlex for { <https://semopenalex.org/work/W29305752> ?p ?o ?g. }
Showing items 1 to 59 of
59
with 100 items per page.
- W29305752 abstract "Ultracold atomic gases provide a unique way for exploring many-body quantum phenomena that are inaccessible to conventional low-temperature experiments. Nearly two decades ago the Bose-Einstein condensate (BEC) - an ultracold gas of bosons in which almost all bosons occupy the same single-particle state - became experimentally feasible. Because a BEC exhibits superfluid properties, it can provide insights into the behavior of low-temperature helium liquids. We describe the case of a single distinguishable atom (an impurity) embedded in a BEC and strongly coupled to the BEC bosons. Depending on the strength of impurity-boson and boson-boson interactions, the impurity self-localizes into two fundamentally distinct regimes. The impurity atom can behave as a tightly localized 'polaron,' akin to an electron in a dielectric crystal, or as a 'bubble,' an analog to an electron bubble in superfluid helium. We obtain the ground state wavefunctions of the impurity and BEC by numerically solving the two coupled Gross-Pitaevskii equations that characterize the system. We employ the methods of imaginary time propagation and conjugate gradient descent. By appropriately varying the impurity-boson and boson-boson interaction strengths, we focus on the polaron to bubble crossover. Our results confirm analytical predictions for the polaron limit and uncover properties of themore » bubble regime. With these results we characterize the polaron to bubble crossover. We also summarize our findings in a phase diagram of the BEC-impurity system, which can be used as a guide in future experiments.« less" @default.
- W29305752 created "2016-06-24" @default.
- W29305752 creator A5053956047 @default.
- W29305752 date "2012-08-01" @default.
- W29305752 modified "2023-09-23" @default.
- W29305752 title "Tiny Bubbles in my BEC" @default.
- W29305752 hasPublicationYear "2012" @default.
- W29305752 type Work @default.
- W29305752 sameAs 29305752 @default.
- W29305752 citedByCount "0" @default.
- W29305752 crossrefType "journal-article" @default.
- W29305752 hasAuthorship W29305752A5053956047 @default.
- W29305752 hasConcept C121332964 @default.
- W29305752 hasConcept C147120987 @default.
- W29305752 hasConcept C157915830 @default.
- W29305752 hasConcept C25536358 @default.
- W29305752 hasConcept C26873012 @default.
- W29305752 hasConcept C49024897 @default.
- W29305752 hasConcept C57879066 @default.
- W29305752 hasConcept C62520636 @default.
- W29305752 hasConcept C64127065 @default.
- W29305752 hasConcept C79118098 @default.
- W29305752 hasConceptScore W29305752C121332964 @default.
- W29305752 hasConceptScore W29305752C147120987 @default.
- W29305752 hasConceptScore W29305752C157915830 @default.
- W29305752 hasConceptScore W29305752C25536358 @default.
- W29305752 hasConceptScore W29305752C26873012 @default.
- W29305752 hasConceptScore W29305752C49024897 @default.
- W29305752 hasConceptScore W29305752C57879066 @default.
- W29305752 hasConceptScore W29305752C62520636 @default.
- W29305752 hasConceptScore W29305752C64127065 @default.
- W29305752 hasConceptScore W29305752C79118098 @default.
- W29305752 hasLocation W293057521 @default.
- W29305752 hasOpenAccess W29305752 @default.
- W29305752 hasPrimaryLocation W293057521 @default.
- W29305752 hasRelatedWork W1489734566 @default.
- W29305752 hasRelatedWork W1859855601 @default.
- W29305752 hasRelatedWork W1966440954 @default.
- W29305752 hasRelatedWork W1997500832 @default.
- W29305752 hasRelatedWork W1997584947 @default.
- W29305752 hasRelatedWork W2008146769 @default.
- W29305752 hasRelatedWork W2019160891 @default.
- W29305752 hasRelatedWork W2050398354 @default.
- W29305752 hasRelatedWork W2062414113 @default.
- W29305752 hasRelatedWork W2091823902 @default.
- W29305752 hasRelatedWork W2102646212 @default.
- W29305752 hasRelatedWork W2137073582 @default.
- W29305752 hasRelatedWork W2260809106 @default.
- W29305752 hasRelatedWork W2947463922 @default.
- W29305752 hasRelatedWork W2973271658 @default.
- W29305752 hasRelatedWork W3099730414 @default.
- W29305752 hasRelatedWork W3146258575 @default.
- W29305752 hasRelatedWork W3198433819 @default.
- W29305752 hasRelatedWork W3203354042 @default.
- W29305752 hasRelatedWork W3210207566 @default.
- W29305752 isParatext "false" @default.
- W29305752 isRetracted "false" @default.
- W29305752 magId "29305752" @default.
- W29305752 workType "article" @default.