99 citations · 112 across the 3 of their papers we have counts for
Showing 1999Show all
3 papers · 1 filter
cond-mat.supr-con1999
Nodal Quasiparticles versus Phase Fluctuations in High Tc Superconductors: An Intermediate Scenario
Qijin Chen, Ioan Kosztin, K. Levin
We explore a BCS Bose Einstein crossover scenario for and its implications for the superfluid density and specific heat. The low lying excitations consist of no…
cond-mat.supr-con1999
Unusual thermodynamical and transport signatures of short coherence length superconductors: A BCS Bose-Einstein crossover approach
Qijin Chen, Ioan Kosztin, K. Levin
In this paper we present predictions for thermodynamic and transport properties of a BCS Bose-Einstein crossover theory, below Tc, which theory satisfies the reasonable constraints…
cond-mat.supr-con1999
Pair Excitations, Collective Modes and Gauge Invariance in the BCS -- Bose-Einstein Crossover Scenario
Ioan Kosztin, Qijin Chen, Ying-Jer Kao +1
In this paper we study the BCS Bose Einstein condensation (BEC) crossover scenario within the superconducting state, using a T-matrix approach which yields the ground state propose…