We study the physics of soft-core bosons at zero temperature in two dimensions for a class of potentials that could be realised in experiments with Rydberg dressed Bose-Einstein condensates. We analyze the ground state properties of the system in detail and provide a complete description of the excitation spectra in both superfluid, supersolid and crystalline phase for a wide range of interaction strengths and densities. In addition we describe a method to extract the transverse gapless excitation modes in the phases with broken translational symmetry within the framework of path integral Monte Carlo methods.

Ground state and excitation properties of soft-core bosons / MacRi T.; Saccani S.; Cinti F.. - In: JOURNAL OF LOW TEMPERATURE PHYSICS. - ISSN 0022-2291. - ELETTRONICO. - 177:(2014), pp. 59-71. [10.1007/s10909-014-1192-7]

Ground state and excitation properties of soft-core bosons

Cinti F.
Membro del Collaboration Group
2014

Abstract

We study the physics of soft-core bosons at zero temperature in two dimensions for a class of potentials that could be realised in experiments with Rydberg dressed Bose-Einstein condensates. We analyze the ground state properties of the system in detail and provide a complete description of the excitation spectra in both superfluid, supersolid and crystalline phase for a wide range of interaction strengths and densities. In addition we describe a method to extract the transverse gapless excitation modes in the phases with broken translational symmetry within the framework of path integral Monte Carlo methods.
2014
177
59
71
MacRi T.; Saccani S.; Cinti F.
File in questo prodotto:
File Dimensione Formato  
Macrì2014_Article_GroundStateAndExcitationProper.pdf

accesso aperto

Tipologia: Pdf editoriale (Version of record)
Licenza: Open Access
Dimensione 353.61 kB
Formato Adobe PDF
353.61 kB Adobe PDF

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1194683
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 27
  • ???jsp.display-item.citation.isi??? 25
social impact