TITLE

Expansion dynamics in a one-dimensional hard-core boson model with three-body interactions

AUTHOR(S)
Jie Ren; Yin-Zhong Wu; Xue-Fen Xu
PUB. DATE
October 2015
SOURCE
Scientific Reports;10/9/2015, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using the adaptive time-dependent density matrix renormalization group method, we numerically investigate the expansion dynamics of bosons in a one-dimensional hard-core boson model with three-body interactions. It is found that the bosons expand ballistically with weak interaction, which are obtained by local density and the radius Rn. It is shown that the expansion velocity V, obtained from Rn = Vt, is dependent on the number of bosons. As a prominent result, the expansion velocity decreases with the enhancement of three-body interaction. We further study the dynamics of the system, which quenches from the ground state with two-thirds filling, the results indicate the expansion is also ballistic in the gapless phase regime. It could help us detect the phase transition in the system.
ACCESSION #
110327893

 

Related Articles

  • Communication: Spin-boson model with diagonal and off-diagonal coupling to two independent baths: Ground-state phase transition in the deep sub-Ohmic regime. Yang Zhao; Yao Yao; Chernyak, Vladimir // Journal of Chemical Physics;4/28/2014, Vol. 140 Issue 16, p161105-1 

    We investigate a spin-boson model with two boson baths that are coupled to two perpendicular components of the spin by employing the density matrix renormalization group method with an optimized boson basis. It is revealed that in the deep sub-Ohmic regime there exists a novel second-order phase...

  • Critical behavior of the random Potts model. Khasanov, B. M.; Belov, S. I.; Tayurskii, D. A. // Journal of Applied Physics;11/15/1994, Vol. 76 Issue 10, p6353 

    Focuses on a study which explored the phase transition in the continual random n-component Potts model through the renormalization group method. Description of lattice sites in the model; Values of change in renormalization group transformation; Critical behavior of the Potts model.

  • Berezinskii–Kosterlitz–Thouless phase transition in systems with exotic symmetries. Bulgadaev, S. A. // JETP Letters;5/10/96, Vol. 63 Issue 9, p780 

    A Berezinksiî—Kosterlitz—Thouless phase transition in systems with the exceptional symmetry groups G=E[sub 6,7,8,] G[sub 2], and F[sub 2] is studied. The critical exponents and the exponents of the logarithmic corrections to the correlation functions at the transition point are...

  • ABOUT THE ROLE OF THE HIGGS BOSON IN THE EVOLUTION OF THE EARLY UNIVERSE. JEGERLEHNER, FRED // Acta Physica Polonica B;2014, Vol. 45 Issue 7, p1393 

    I review a recent analysis presented in F. Jegerlehner, Acta Phys. Pol. B 45, 1167 (2014); arXiv: 1305.6652 [hep-ph], Acta Phys. Pol. B45, 1215 (2014). After the discovery of the Higgs particle the most relevant structures of the SM have been verified and for the first time we know all...

  • Decay spectroscopy of neutron-rich nuclei with A ≃ 100. Lhersonneau, G.; Pfeiffer, B.; Kratz, K.-L. // Hyperfine Interactions;Jan2014, Vol. 223 Issue 1-3, p137 

    We review structure data obtained by decay spectroscopy of neutron-rich nuclei of mass close to 100. Emphasis is put on the contribution of experiments at IGISOL in the nineties. They confirmed the earlier postulated shape coexistence in the fast shape-transition region between N = 58 (spherical...

  • Ferroelectricity and pressure-induced phase transitions in HgTiO. Lebedev, A. // Physics of the Solid State;Aug2012, Vol. 54 Issue 8, p1663 

    Using ab initio density functional theory, the ground state of mercury titanate is determined and phase transitions occurring in it at pressures P ≤ 210 kbar are analyzed. It is shown that the R3 c structure experimentally observed in HgTiO is metastable at P = 0. The ground state...

  • Phase transitions in the 2D J- J Heisenberg model with arbitrary signs of exchange interactions. Mikheyenkov, A.; Shvartsberg, A.; Barabanov, A. // JETP Letters;Oct2013, Vol. 98 Issue 3, p156 

    The ground state of the J- J Heisenberg model with arbitrary signs of exchange is studied for spin S = 1/2 in the case of the two-dimensional (2D) square lattice. The states with different types of spin long-range order (antiferromagnetic checkerboard, stripe, collinear ferromagnetic) as well as...

  • Communication: Magnetic dipole transitions in the OH A 2Σ+ ← X 2Π system. Kirste, Moritz; Wang, Xingan; Meijer, Gerard; Gubbels, Koos B.; van der Avoird, Ad; Groenenboom, Gerrit C.; van de Meerakker, Sebastiaan Y. T. // Journal of Chemical Physics;9/14/2012, Vol. 137 Issue 10, p101102 

    We report on the observation of magnetic dipole allowed transitions in the well-characterized A 2Σ+ - X 2Π band system of the OH radical. A Stark decelerator in combination with microwave Rabi spectroscopy is used to control the populations in selected hyperfine levels of both...

  • Electromagnetically induced transparency in a Λ-type molecular system with permanent dipole moments revisited. Singh, Niharika; Lawande, Q. V.; D'Souza, R.; Jagatap, B. N. // Journal of Chemical Physics;9/14/2012, Vol. 137 Issue 10, p104309 

    Electromagnetically induced transparency (EIT) in a molecular three-level Λ system with permanent dipole moments and undergoing m- and n-photon transitions by pump and probe lasers is investigated. Analytical expressions are derived for probe absorption spectrum and dispersion for a medium...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics