61 citations · 159 across the 8 of their papers we have counts for
12 papers · 1 filter
Test for BCS-BEC Crossover in the Cuprate Superconductors
Qijin Chen, Zhiqiang Wang, Rufus Boyack +1
In this paper we address the question of whether high-temperature superconductors have anything in common with BCS-BEC crossover theory. Towards this goal, we present a proposal an…
When Superconductivity Crosses Over: From BCS to BEC
Qijin Chen, Zhiqiang Wang, Rufus Boyack +2
New developments in superconductivity, particularly through unexpected and often astonishing forms of superconducting materials, continue to excite the community and stimulate theo…
Higher angular momentum pairing states in SrRuO in the presence of longer-range interactions
Xin Wang, Zhiqiang Wang, Catherine Kallin
The superconducting symmetry of SrRuO remains a puzzle. Time-reversal symmetry breaking pairing has been proposed for reconciling multiple…
Unified approach to electrical and thermal transport in high- superconductors
Rufus Boyack, Zhiqiang Wang, Qijin Chen +1
In this paper we present a consolidated equation for all low-field transport coefficients, based on a reservoir approach developed for non-interacting quasiparticles. This formalis…
Possibility of mixed helical p-wave pairings in SrRuO
Wen Huang, Zhiqiang Wang
The exact nature of unconventional superconductivity in SrRuO remains a mystery. At the phenomenological level, no superconducting order parameter proposed thus far seems a…
Quantum Geometric Contributions to the BKT Transition: Beyond Mean Field Theory
Zhiqiang Wang, Gaurav Chaudhary, Qijin Chen +1
We study quantum geometric contributions to the Berezinskii-Kosterlitz-Thouless (BKT) transition temperature, , in the presence of fluctuations beyond BCS theory.…