Phase and Amplitude Modes in a Superconductor with Interlayer Pair Tunneling
Wen-Chin Wu, A. Griffin
DOI 10.1103/PhysRevLett.74.158 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Chakravarty, Sudbø, Anderson, and Strong have introduced a simple model for high Tc oxides based on the effect of Cooper pair tunneling in a bilayer (with strength TJ) with s-wave pairing (g) in the layers. We discuss the order parameter fluctuations of this model. Besides the usual Anderson-Bogoliubov phase and Littlewood-Varma amplitude modes, we find new out-of-phase phase and amplitude modes. Their energy and damping depend critically on whether TJ>g or TJ<g. Such fluctuations in the relative phase and amplitude of two coupled condensates were first discussed in a different system by Leggett in 1966.
Similar papers
Hybridization and interference effects for localized superconducting states in strong magnetic field
similarity 0.84Aladyshkin, A. Yu. et al. · 2012 · arXiv:1205.3992
Source status unknown — claims are unverified
Coupled-spin-mobile-hole model for high-Tc superconducting oxides
similarity 0.84E. Y. Loh, Jr. et al.
Source status unknown — claims are unverified
Hybridization and interference effects for localized superconducting states in strong magnetic field
similarity 0.84A. Yu. Aladyshkin et al.
Source status unknown — claims are unverified
Finite-momentum superconductivity with singlet-triplet mixing in an altermagnetic metal: A pairing instability analysis
similarity 0.84Hui Hu et al. · 2026 · arXiv:2603.12897
Source status unknown — claims are unverified
High Tc Superconductors -- A Variational Theory of the Superconducting State
similarity 0.84Arun Paramekanti et al. · 2003 · arXiv:cond-mat/0305611
Source status unknown — claims are unverified
Energy gap, Tc, and density of states in high-temperature superconductors for retarded s- and d-wave interactions
similarity 0.84C. T. Rieck et al.
Source status unknown — claims are unverified