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Title: Spin imbalance effect on the Larkin-Ovchinnikov-Fulde-Ferrel state

Abstract

We study spin imbalance effects on the Larkin-Ovchinnikov-Fulde-Ferrel (LOFF) state relevant for superconductors under a strong magnetic field and spin polarized ultracold Fermi gas. We obtain the exact solution for the condensates with arbitrary spin imbalance and the fermion spectrum perturbatively in the presence of small spin imbalance. We also obtain fermion zero mode exactly without perturbation theory.

Authors:
 [1];  [2];  [3];  [4];  [2];  [3];  [5];  [3]
  1. Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522 (Japan)
  2. Department of Physics, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601 (Japan)
  3. (Japan)
  4. (JST), 4-1-8 Honcho, Saitama 332-0012 (Japan)
  5. Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521 (Japan)
Publication Date:
OSTI Identifier:
21596826
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 84; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevB.84.024503; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CONDENSATES; EXACT SOLUTIONS; FERMI GAS; FERMIONS; MAGNETIC FIELDS; PERTURBATION THEORY; SPECTRA; SPIN; SPIN ORIENTATION; SUPERCONDUCTORS; TEMPERATURE RANGE 0000-0013 K; ANGULAR MOMENTUM; MATHEMATICAL SOLUTIONS; ORIENTATION; PARTICLE PROPERTIES; TEMPERATURE RANGE

Citation Formats

Yoshii, Ryosuke, Tsuchiya, Shunji, Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521, CREST, Marmorini, Giacomo, Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521, Nitta, Muneto, and Department of Physics, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521. Spin imbalance effect on the Larkin-Ovchinnikov-Fulde-Ferrel state. United States: N. p., 2011. Web. doi:10.1103/PHYSREVB.84.024503.
Yoshii, Ryosuke, Tsuchiya, Shunji, Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521, CREST, Marmorini, Giacomo, Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521, Nitta, Muneto, & Department of Physics, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521. Spin imbalance effect on the Larkin-Ovchinnikov-Fulde-Ferrel state. United States. doi:10.1103/PHYSREVB.84.024503.
Yoshii, Ryosuke, Tsuchiya, Shunji, Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521, CREST, Marmorini, Giacomo, Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521, Nitta, Muneto, and Department of Physics, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521. Fri . "Spin imbalance effect on the Larkin-Ovchinnikov-Fulde-Ferrel state". United States. doi:10.1103/PHYSREVB.84.024503.
@article{osti_21596826,
title = {Spin imbalance effect on the Larkin-Ovchinnikov-Fulde-Ferrel state},
author = {Yoshii, Ryosuke and Tsuchiya, Shunji and Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521 and CREST and Marmorini, Giacomo and Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521 and Nitta, Muneto and Department of Physics, Keio University, 4-1-1 Hiyoshi, Kanagawa 223-8521},
abstractNote = {We study spin imbalance effects on the Larkin-Ovchinnikov-Fulde-Ferrel (LOFF) state relevant for superconductors under a strong magnetic field and spin polarized ultracold Fermi gas. We obtain the exact solution for the condensates with arbitrary spin imbalance and the fermion spectrum perturbatively in the presence of small spin imbalance. We also obtain fermion zero mode exactly without perturbation theory.},
doi = {10.1103/PHYSREVB.84.024503},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 2,
volume = 84,
place = {United States},
year = {2011},
month = {7}
}