Zobrazeno 1 - 10
of 354
pro vyhledávání: '"Guan, X W"'
Autor:
Henson, B. M., Yue, Xuguang, Hodgman, S. S., Shin, D. K., Smirnov, L. A., Ostrovskaya, E. A., Guan, X. W., Truscott, A. G.
Publikováno v:
Phys. Rev. A 97, 063601 (2018)
We develop a simple yet powerful technique to study Bogoliubov-Cherenkov radiation by producing a pulsed atom laser from a strongly confined Bose-Einstein condensate. Such radiation results when the atom laser pulse falls past a Bose-Einstein condens
Externí odkaz:
http://arxiv.org/abs/1711.08886
Publikováno v:
Phys. Rev. A 94, 043645 (2016)
Using exact Bethe ansatz (BA) solutions, we show that a spin-down fermion immersed into a fully polarized spin-up Fermi sea with a weak attraction is dressed by the surrounding spin-up fermions to form the one-dimensional analog of a polaron. As the
Externí odkaz:
http://arxiv.org/abs/1611.01073
Publikováno v:
Chin. Phys. B Vol. 24, No. 5 (2015) 050311
This article presents an elementary introduction on various aspects of the prototypical integrable model the Lieb-Liniger Bose gas ranging from the cooperative to the collective features of many-body phenomena [1]. In 1963 Lieb and Liniger first solv
Externí odkaz:
http://arxiv.org/abs/1502.03291
Publikováno v:
Nature Communications 5:5140 (2014)
A central quantity of importance for ultracold atoms is contact, which measures two-body correlations at short distances in dilute systems. It appears in universal relations among thermodynamic quantities, such as large momentum tails, energy, and dy
Externí odkaz:
http://arxiv.org/abs/1405.2256
Publikováno v:
Phys. Rev. Lett. 111, 130401 (2013)
We calculate the Wilson ratio of the one-dimensional Fermi gas with spin imbalance. The Wilson ratio of attractively interacting fermions is solely determined by the density stiffness and sound velocity of pairs and of excess fermions for the two-com
Externí odkaz:
http://arxiv.org/abs/1306.5622
Publikováno v:
Phys. Rev. A 87, 043634 (2013)
The one-dimensional Lieb-Liniger Bose gas is a prototypical many-body system featuring universal Tomonaga-Luttinger liquid (TLL) physics and free fermion quantum criticality. We analytically calculate finite temperature local pair correlations for th
Externí odkaz:
http://arxiv.org/abs/1211.3267
Publikováno v:
Phys. Rev. A 85, 043606 (2012)
Using the thermodynamic Bethe ansatz equations we study the quantum phase diagram, thermodynamics and criticality of one-dimensional spin-1 bosons with strongly repulsive density-density and antiferromagnetic spin-exchange interactions. We analytical
Externí odkaz:
http://arxiv.org/abs/1201.6456
Publikováno v:
Phys. Rev. A 86, 011605(R) (2012)
We investigate universal thermodynamics and quantum criticality of spin-1 bosons with strongly repulsive density-density and antiferromagnetic spin-exchange interactions in a one-dimensional harmonic trap. From the equation of state, we find that a p
Externí odkaz:
http://arxiv.org/abs/1111.2375
Publikováno v:
Phys. Rev. A 85, 013629 (2012)
We propose a one-dimensional model of spinor bosons with SU(2) symmetry and a two-body finite range Gaussian interaction potential. We show that the model is exactly solvable when the width of the interaction potential is much smaller compared to the
Externí odkaz:
http://arxiv.org/abs/1106.1960
Autor:
Lee, J. Y., Guan, X. W.
Publikováno v:
Nuclear Physics B 853, 125 (2011)
We investigate the long distance asymptotics of various correlation functions for the one-dimensional spin-1/2 Fermi gas with attractive interactions using the dressed charge formalism. In the spin polarized phase, these correlation functions exhibit
Externí odkaz:
http://arxiv.org/abs/1105.3775