2019
DOI: 10.1103/physreva.100.063614
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Berezinskii-Kosterlitz-Thouless transition in two-dimensional dipolar stripes

Abstract: A two-dimensional quantum system of dipoles, with a polarization angle not perpendicular to the plane, shows a transition from a gas to a stripe phase. We have studied the thermal properties of these two phases using the path integral Monte Carlo (PIMC) method. By simulating the thermal density matrix, PIMC provides exact results for magnitudes of interest such as the superfluid fraction and the one-body density matrix. As it is well known, in two dimensions the superfluid-to-normal phase transition follows th… Show more

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Cited by 19 publications
(6 citation statements)
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“…At finite temperature, enhanced fluctuation in 2D will destroy the long-range order, but a quasi-long-range order may survive. A phase transition belonging to the usual Berezinskii-Kosterlitz-Thouless universality class is expected; this has been studied in Monte Carlo simulation [32,33]. Thus, the T c curves discussed here, are in a strict sense, RPA instability lines.…”
mentioning
confidence: 84%
“…At finite temperature, enhanced fluctuation in 2D will destroy the long-range order, but a quasi-long-range order may survive. A phase transition belonging to the usual Berezinskii-Kosterlitz-Thouless universality class is expected; this has been studied in Monte Carlo simulation [32,33]. Thus, the T c curves discussed here, are in a strict sense, RPA instability lines.…”
mentioning
confidence: 84%
“…The PIMC method implementing the worm algorithm has proven to be one of the most powerful computational quantum many-body techniques. It allowed performing accurate simulations of intriguing phenomena in different condensed matter systems, such as dipolar systems [10][11][12], ultracold gases [13][14][15][16][17] and quantum fluids and solids [18][19][20][21][22][23][24]. However, the original implementation of the worm algorithm is not fully compatible with periodic boundary conditions.…”
Section: Introductionmentioning
confidence: 99%
“…The PIMC method implementing the worm algorithm has proven to be one of the most powerful computational quantum many-body techniques. It allowed performing accurate simulations of intriguing phenomena in different condensed matter systems, such as dipolar systems [10][11][12], ultracold gases [13][14][15][16][17] and quantum fluids and solids [18][19][20][21][22][23][24]. However, the original implementation of the worm algorithm is not fully compatible with periodic boundary conditions.…”
Section: Introductionmentioning
confidence: 99%