20 citations · 54 across the 5 of their papers we have counts for
10 papers
Twisted kink crystal in holographic superconductor
Masataka Matsumoto, Ryosuke Yoshii
Holographic superconductor model represents various inhomogeneous solutions with homogeneous sources. In this paper, we study inhomogeneous structures in the presence of the homoge…
Stability of supercurrents in a superfluid phase of spin-1 bosons in an optical lattice
Shion Yamashika, Ryosuke Yoshii, Shunji Tsuchiya
We study collective modes and superfluidity of spin-1 bosons with antiferromagnetic interactions in an optical lattice based on the time-dependent Ginzburg-Landau (TDGL) equation d…
Kink Crystalline Condensate and Multi-kink Solution in Holographic Superconductor
Masataka Matsumoto, Shin Nakamura, Ryosuke Yoshii
The theory of superconductivity can be divided into two groups depending on whether it has multi-kink solutions. For example, the BCS theory and the Gross-Neveu model have metastab…
Ground state modulations in the model
Antonino Flachi, Guglielmo Fucci, Muneto Nitta +2
In this work we examine a system consisting of a confined one-dimensional arrangement of atoms that we describe by using the 2-dimensional model, restricted to…
Nambu-Jona Lasinio and Nonlinear Sigma Models in Condensed Matter Systems
Ryosuke Yoshii, Muneto Nitta
We review various connections between condensed matter systems with the Nambu-Jona Lasinio model and nonlinear sigma models. The field theoretical description of interacting system…
Hidden charge-conjugation, parity, and time-reversal symmetries and massive Goldstone (Higgs) modes in superconductors
Shunji Tsuchiya, Daisuke Yamamoto, Ryosuke Yoshii +1
A massive Goldstone (MG) mode, often referred to as a Higgs amplitude mode, is a collective excitation that arises in a system involving spontaneous breaking of a continuous symmet…