Superfluidity, Bose-Einstein condensation, and structure in one-dimensional Luttinger liquids
نویسندگان
چکیده
منابع مشابه
Luttinger-Liquid Physics and Bose-Einstein Condensation in Quantum Magnets
The phase diagram of quasi-1D arrays of quantum spins in temperature and magnetic field is particularly rich: quantum disordered, quantum critical, spin Luttinger-liquid, BEC, and classically saturated phases can in principle be studied [1-3]. However, model materials are rare, where these phases can be explored experimentally with the exception of the novel metal-organic compound (C5H12N)2CuBr...
متن کاملBose-Einstein Condensation in the Luttinger-Sy Model
We present a rigorous study of the Bose-Einstein condensation in the Luttinger-Sy model. We prove the existence of the condensation in this one-dimensional model of the perfect boson gas placed in the Poisson random potential of singular point impurities. To tackle the off-diagonal long-range order we calculate explicitly the corresponding spaceaveraged one-body reduced density matrix. We show ...
متن کاملDimensional phase transition from an array of 1D Luttinger liquids to a 3D Bose-Einstein condensate.
We study the thermodynamic properties of a 2D array of coupled one-dimensional Bose gases. The system is realized with ultracold bosonic atoms loaded in the potential tubes of a two-dimensional optical lattice. For negligible coupling strength, each tube is an independent weakly interacting 1D Bose gas featuring Tomonaga Luttinger liquid behavior. By decreasing the lattice depth, we increase th...
متن کاملBose Condensation and Superfluidity in Finite Rotating Bose Systems
A long standing problem in the theory of superfluidity concerns the question of how close is the connection between Bose condensation and superfluidity[1]. For the case of superfluid He, the Bose condensate fraction is quite small (if not virtually zero), yet the superfluid fraction goes to unity in the limit of low temperatures T → 0. For the superfluid He case, the observation of superfluidit...
متن کاملDiquark Bose-Einstein condensation
Bose-Einstein condensation (BEC) of composite diquarks in quark matter (the color superconductor phase) is discussed using the quasi-chemical equilibrium theory at a relatively low density region near the deconfinement phase transition, where dynamical quark-pair fluctuations are assumed to be described as bosonic degrees of freedom (diquarks). A general formulation is given for the diquark for...
متن کاملذخیره 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 B
سال: 2018
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.97.014513