Superconductivity as a Bose-Einstein condensation?
نویسندگان
چکیده
منابع مشابه
Superconductivity as a Bose-Einstein condensation?
Bose-Einstein condensation (BEC) in two dimensions (2D) (e.g., to describe the quasi-2D cuprates) is suggested as the possible mechanism widely believed to underlie superconductivity in general. A crucial role is played by nonzero center-of-mass momentum Cooper pairs (CPs) usually neglected in BCS theory. Also vital is the unique linear dispersion relation appropriate to weakly-coupled “bosonic...
متن کاملStatistical Model of 2D Superconductivity via Bose-Einstein Condensation
A two-dimensional (2D) assembly of noninteracting, temperature-dependent, compositeboson Cooper pairs (CPs) in chemical and thermal equilibrium with unpaired fermions is examined in a binary boson-fermion statistical model for the superconducting singularity temperature. It is derived from first principles for the BCS model inter-fermion interaction from three extrema of the system Helmholtz fr...
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 کاملConfinement versus Bose-Einstein condensation
The deconfinement phase transition at high baryon densities and low temperatures evades a direct investigation by means of lattice gauge calculations. In order to make this regime of QCD accessible by computer simulations, two proposal are made: (i) A Lattice Effective Theory (LET) is designed which incorporates gluon and diquark fields. The deconfinement transition takes place when the diquark...
متن کاملOn Relativistic Bose-Einstein Condensation
We discuss the properties of an ideal relativistic gas of events possessing Bose-Einstein statistics. We find that the mass spectrum of such a system is bounded by μ ≤ m ≤ 2M/μK , where μ is the usual chemical potential, M is an intrinsic dimensional scale parameter for the motion of an event in spacetime, and μK is an additional mass potential of the ensemble. For the system including both par...
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: Physica C: Superconductivity
سال: 2000
ISSN: 0921-4534
DOI: 10.1016/s0921-4534(00)00457-3