Dimensionally induced one-dimensional to three-dimensional phase transition of the weakly interacting ultracold Bose gas

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Weakly interacting Bose gas in the one-dimensional limit.

We prepare a chemically and thermally one-dimensional (1D) quantum degenerate Bose gas in a single microtrap. We introduce a new interferometric method to distinguish the quasicondensate fraction of the gas from the thermal cloud at finite temperature. We reach temperatures down to kT≈0.5ℏω(⊥) (transverse oscillator eigenfrequency ω(⊥)) when collisional thermalization slows down as expected in ...

متن کامل

Quantum Phase Transition in a Low-Dimensional Weakly Interacting Bose Gas

This thesis is devoted to the study of the effect of disorder on low-dimensional weakly interacting Bose gases. In particular, the disorder triggers a quantum phase transition in one dimension at zero temperature that is investigated here through the study of the long-range behaviour of the one-body density matrix. An algebraic spatial decay of the coherence marks the quasicondensate, whereas, ...

متن کامل

Interaction-induced crossover versus finite-size condensation in a weakly interacting trapped one-dimensional Bose gas

I. Bouchoule, K. V. Kheruntsyan, and G. V. Shlyapnikov Laboratoire Charles Fabry, UMR 8501 du CNRS, 91 403 Orsay Cedex, France ARC Centre of Excellence for Quantum-Atom Optics, School of Physical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia Laboratoire de Physique Theorique et Modeles Statistiques, Université Paris-Sud, 91405 Orsay Cedex, France Van der Waals–Zeeman ...

متن کامل

Critical point of a weakly interacting two-dimensional Bose gas.

We study the Berezinskii-Kosterlitz-Thouless transition in a weakly interacting 2D quantum Bose gas using the concept of universality and numerical simulations of the classical absolute value psi(4) model on a lattice. The critical density and chemical potential are given by relations n(c) = (mT/2piPlanck's(2))ln(xiPlanck's(2)/mU) and mu(c) = (mTU/piPlanck's(2))ln(xi(mu)Planck's(2)/mU), where T...

متن کامل

- Type Phase Transition for a Weakly Interacting Bose Gas

It is suggested a general mechanism through which a -type behavior is produced in the speci c heat of a Bose gas near the critical temperature Tc. It is essential that the quasiparticle spectra have a gap proportional to the condensate. It works for a general class of quasiparticle spectra, and in particular, for the weakly interacting Bose gas. The introduction of a chemical potential in the t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review A

سال: 2017

ISSN: 2469-9926,2469-9934

DOI: 10.1103/physreva.95.043610