Collective Modes in BCS-Like Models

被引：0
|
作者：
Fabrizio Palumbo
机构：
[1] INFN – Laboratori Nazionali di Frascati,
来源：
Journal of Superconductivity and Novel Magnetism | 2018年 / 31卷
关键词：
Collective modes; Gap of collective modes; Intrinsic structure of dynamical Cooper pairs;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The Hamiltonian of the gapped modes in the BCS model of superconductivity is derived using the nilpotency expansion. It has the form of the Bogoliubov Hamiltonian of a boson superfluid. The gapped modes have a quadratic dispersion law. The smallest energy gap is smaller than twice the fermionic energy gap. The nilpotency expansion respects all the symmetries and it has been previously applied to nuclear physics and relativistic field theories including QCD. In particular, it reproduces exactly the bosonization occurring in a relativistic 4-fermion interaction model.
引用
收藏
页码：625 / 629
页数：4
相关论文
共 50 条
  • [1] Collective Modes in BCS-Like Models
    Palumbo, Fabrizio
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2018, 31 (03) : 625 - 629
  • [2] A quartet BCS-like theory
    Baran, V. V.
    Delion, D. S.
    PHYSICS LETTERS B, 2020, 805
  • [3] APPROXIMATIVE BCS-LIKE SOLUTION OF ELIASHBERG GAP EQUATION
    NOWOTNY, H
    PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 1976, 77 (02): : 623 - 629
  • [4] Unified BCS-Like Model of Pairing and Alpha-Correlations
    Sen'kov, R. A.
    Zelevinsky, V. G.
    PHYSICS OF ATOMIC NUCLEI, 2011, 74 (09) : 1267 - 1276
  • [5] BaPtSi3: A noncentrosymmetric BCS-like superconductor
    Bauer, E.
    Khan, R. T.
    Michor, H.
    Royanian, E.
    Grytsiv, A.
    Melnychenko-Koblyuk, N.
    Rogl, P.
    Reith, D.
    Podloucky, R.
    Scheidt, E. -W.
    Wolf, W.
    Marsman, M.
    PHYSICAL REVIEW B, 2009, 80 (06)
  • [6] Is MgB2 a BCS-like charged superfluid?
    Angilella, GGN
    March, NH
    Pucci, R
    PHYSICS AND CHEMISTRY OF LIQUIDS, 2006, 44 (02) : 213 - 216
  • [7] BCS-LIKE METHOD IN THEORY OF BAND-FERROMAGNETISM
    FAZAKAS, AB
    CIOBANU, G
    CRISAN, M
    REVUE ROUMAINE DE PHYSIQUE, 1970, 15 (09): : 993 - &
  • [8] Resonant electronic Raman scattering: A BCS-like system
    Rodrigues, Leonarde N.
    Arantes, A.
    Schueller, C.
    Bell, M. J. V.
    Anjos, V.
    PHYSICAL REVIEW B, 2016, 93 (20)
  • [9] Quantum critical scaling of fidelity in BCS-like model
    Adamski, Mariusz
    Jedrzejewski, Janusz
    Krokhmalskii, Taras
    JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, 2013,
  • [10] BCS-like modewise entanglement of fermion Gaussian states
    Botero, A
    Reznik, B
    PHYSICS LETTERS A, 2004, 331 (1-2) : 39 - 44
12345