16 citations · 40 across the 6 of their papers we have counts for
6 papers
Bogoliubov analysis of Higgs mode in trapped Fermi superfluids with spatial inhomogeneity
Kensuke Kakimoto, Junichi Takahashi, Yoshiya Yamanaka
The Higgs mode is a key component in the spontaneous breaking of a continuous symmetry along with the Nambu-Goldstone mode, and has been studied extensively for homogeneous systems…
Quantum Reservoir Computing Using Bose-Einstein Condensate with Damping
Yuki Kurokawa, Junichi Takahashi, Yoshiya Yamanaka
Quantum reservoir computing is a type of machine learning in which the high-dimensional Hilbert space of quantum systems contributes to performance. In this study, we employ the Bo…
Bose-Einstein condensation of alpha clusters and new soft mode in 12C--52Fe 4N nuclei in field theoretical superfluid cluster model
R. Katsuragi, Y. Kazama, J. Takahashi +3
Bose-Einstein condensation of alpha clusters in light and medium-heavy nuclei is studied in the frame of the field theoretical superfluid cluster model. The order parameter of the…
Interacting multiple zero mode formulation and its application to a system consisting of a dark soliton in a condensate
J. Takahashi, Y. Nakamura, Y. Yamanaka
To formulate the zero modes in a finite-size system with spontaneous breakdown of symmetries in quantum field theory is not trivial, for in the naive Bogoliubov theory, one encount…
Effective field theory of Bose-Einstein condensation of clusters and Nambu-Goldstone-Higgs states in C
Y. Nakamura, J. Takahashi, Y. Yamanaka +1
An effective field theory of cluster condensation is formulated as a spontaneously broken symmetry in quantum field theory to understand the raison d'etre and nature of the Hoy…
Dynamical Instability Induced by Zero Mode Under Symmetry Breaking External Perturbation
J. Takahashi, Y. Nakamura, Y. Yamanaka
A complex eigenvalue in the Bogoliubov-de Gennes equations for a stationary Bose-Einstein condensate in ultracold atomic system indicates the dynamical instability of the system. W…