2018
DOI: 10.1103/physreva.97.063617
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Many-body solitonlike states of the bosonic ideal gas

Abstract: We study the lowest energy states for fixed total momentum, i.e. yrast states, of N bosons moving on a ring. As in the paper of A. Syrwid and K. Sacha [1], we compare mean field solitons with the yrast states, being the many-body Lieb-Liniger eigenstates. We show that even in the limit of vanishing interaction the yrast states possess features typical for solitons, like phase jumps and density notches. These properties are simply effects of the bosonic symmetrization and are encoded in the Dicke states hidden … Show more

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Cited by 14 publications
(25 citation statements)
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“…The value of r, in this case, equals the characteristic length of the attractive part of van der Waals interactions for dysprosium atoms [80]. We initially set a and ω ⊥ corresponding to the usual situation where the yrast states rather resemble the lowest excitation branch from the Lieb-Liniger model [63,64] and compare their energies (black squares in figure 1(a)) with the Bogoliubov spectrum (black dashed line) given by:…”
Section: Resultsmentioning
confidence: 99%
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“…The value of r, in this case, equals the characteristic length of the attractive part of van der Waals interactions for dysprosium atoms [80]. We initially set a and ω ⊥ corresponding to the usual situation where the yrast states rather resemble the lowest excitation branch from the Lieb-Liniger model [63,64] and compare their energies (black squares in figure 1(a)) with the Bogoliubov spectrum (black dashed line) given by:…”
Section: Resultsmentioning
confidence: 99%
“…How does the calculated g 2 function correspond to an experimental imaging of particles positions using a CCD camera? Having a many-body wave function of a given eigenstate, in particular the roton state, we can explore a multivariate probability distribution of particles positions in a following way [62,64]. Using Metropolis algorithm we draw N positions from the multi particle probability distribution…”
Section: Resultsmentioning
confidence: 99%
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