• 844 引用
  • 15 h指数
1981 …2019
Pureに変更を加えた場合、すぐここに表示されます。

研究成果 1981 2019

  • 844 引用
  • 15 h指数
  • 74 Article
  • 1 Conference contribution
  • 1 Comment/debate
2019
1 引用 (Scopus)
counters
cavities
photons
energy
2018
3 引用 (Scopus)
condensation
nuclei
excitation
operators
nuclear models

New description to soft modes in N-alpha cluster states as Bose-Einstein condensation based on quantum field theory with zero mode excitation

Takahashi, J., Katsuragi, R., Kazama, Y., Nakamura, Y., Yamanaka, Y. & Ohkubo, S., 2018 11 13, Proceedings of the 4th International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2018. Folden, C. M., Goldberg, V. Z., Rogachev, G. V. & Barbui, M. (版). American Institute of Physics Inc., 巻 2038. 020024

研究成果: Conference contribution

condensation
operators
broken symmetry
energy levels
excitation
expansion
differential equations
operators
energy
broken symmetry
leakage
photons
eigenvectors
thermodynamics
2017
4 引用 (Scopus)

Thermal and quantum fluctuations of confined Bose–Einstein condensate beyond the Bogoliubov approximation

Nakamura, Y., Kawaguchi, T., Torii, Y. & Yamanaka, Y., 2017 1 1, : : Annals of Physics. 376, p. 484-498 15 p.

研究成果: Article

condensates
augmentation
approximation
depletion
breakdown
2016
3 引用 (Scopus)
Bose-Einstein condensates
vortices
counters
eigenvalues
quantum numbers
10 引用 (Scopus)
condensation
operators
broken symmetry
decay
excitation
2015
1 引用 (Scopus)
condensates
solitary waves
formulations
breakdown
Bogoliubov theory
2014
modulation
atoms
frequency modulation
harmonics
2 引用 (Scopus)
broken symmetry
perturbation
eigenvalues
Bose-Einstein condensates
condensates
8 引用 (Scopus)
Bose-Einstein condensates
formulations
operators
approximation
commutation
2013
5 引用 (Scopus)
classical mechanics
degrees of freedom
formalism
Green's functions
matrices
5 引用 (Scopus)

From superoperator formalism to nonequilibrium Thermo Field Dynamics

Nakamura, Y. & Yamanaka, Y., 2013 4, : : Annals of Physics. 331, p. 51-69 19 p.

研究成果: Article

formalism
excitation
energy
specifications
formulations
2011
6 引用 (Scopus)

Canonical quantization for a relativistic neutral scalar field in non-equilibrium thermo field dynamics

Mizutani, Y., Inagaki, T., Nakamura, Y. & Yamanaka, Y., 2011 10, : : Progress of Theoretical Physics. 126, 4, p. 681-701 21 p.

研究成果: Article

scalars
equations of motion
counters
operators
interactions
1 引用 (Scopus)
insulators
traps
excitation
harmonics
shrinkage
2 引用 (Scopus)
formalism
temperature
quantum mechanics
momentum
formulations
5 引用 (Scopus)
condensates
atoms
formulations
expansion
decay
2010
5 引用 (Scopus)

Derivation of non-Markovian transport equations for trapped cold atoms in nonequilibrium thermal field theory

Nakamura, Y., Sunaga, T., Mine, M., Okumura, M. & Yamanaka, Y., 2010 2, : : Annals of Physics. 325, 2, p. 426-441 16 p.

研究成果: Article

derivation
atoms
Bose-Einstein condensates
collisions
2009
3 引用 (Scopus)
Bose-Einstein condensates
vortices
completeness
condensates
conservation
2008
14 引用 (Scopus)
eigenvalues
norms
condensates
vortices
approximation

Quantum field theoretical analysis on unstable behavior of Bose-Einstein condensates in optical lattices

Kobayashi, K., Mine, M., Okumura, M. & Yamanaka, Y., 2008 5, : : Annals of Physics. 323, 5, p. 1247-1270 24 p.

研究成果: Article

Bose-Einstein condensates
nonlinear equations
eigenvectors
eigenvalues
formulations
2007
5 引用 (Scopus)
Bose-Einstein condensates
vortices
condensates
quantum numbers
eigenvalues
3 引用 (Scopus)
Hamiltonians
Bose-Einstein condensates
eigenvalues
Atoms
neutral atoms
Hamiltonians
Bose-Einstein condensates
condensates
Vortex flow
eigenvalues
13 引用 (Scopus)
Bose-Einstein condensates
eigenvalues
elementary excitations
neutral atoms
condensates
2 引用 (Scopus)
Bose-Einstein condensates
Vortex flow
vortices
eigenvalues
expansion
2006
2 引用 (Scopus)

Effect of the zero-mode on the response of a trapped bose-condensed gas

Mine, M., Koide, T., Okumura, M. & Yamanaka, Y., 2006 4, : : Progress of Theoretical Physics. 115, 4, p. 683-700 18 p.

研究成果: Article

theorems
Bose-Einstein condensates
gases
excitation
energy

Effect of zero mode on the response of trapped bose-condensed atoms

Mine, M., Koide, T., Okumura, M. & Yamanaka, Y., 2006 3 22, : : Journal of Physics: Conference Series. 31, 1, p. 211-212 2 p.

研究成果: Article

Bose-Einstein condensates
atoms
frequency response
excitation
theorems
6 引用 (Scopus)
theorems
breakdown
symmetry
gases
boxes
2 引用 (Scopus)
Bose-Einstein Condensation
condensation
Trap
Zero
neutral atoms
2005
8 引用 (Scopus)
Bose-Einstein Condensate
Quantum Field Theory
Condensation
Bose-Einstein condensates
Vacuum
5 引用 (Scopus)
Bose-Einstein Condensation
neutral atoms
Finite Temperature
condensation
Quasiparticles
2004
6 引用 (Scopus)
Bose-Einstein condensates
condensates
particle energy
critical temperature
expansion

Nambu-Goldstone mode in trapped bose-einstein condensation

Okumura, M. & Yamanaka, Y., 2004 1 1, : : Journal of Modern Optics. 51-6, 7, 1 p.

研究成果: Article

condensation

Nambu-Goldstone mode in trapped Bose-Einstein condensation

Okumura, M. & Yamanaka, Y., 2004 4 15, : : Journal of Modern Optics. 51, 6-7, p. 1101 1 p.

研究成果: Article

condensation
neutral atoms
condensates
profiles
energy
1 引用 (Scopus)

Response of trapped Bose-Einstein condensates under time-dependent perturbation

Koide, T., Mine, M., Okumura, M. & Yamanaka, Y., 2004 4 15, : : Journal of Modern Optics. 51, 6-7, p. 1103-1104 2 p.

研究成果: Article

Bose-Einstein condensates
perturbation
excitation
deviation
approximation
2003
condensation
commutation
alkali metals
atoms
condensates
17 引用 (Scopus)
condensation
formulations
traps
approximation
condensation
trapping
1998
quantum mechanics
inelastic scattering
1997
22 引用 (Scopus)
quantum mechanics
inelastic scattering
1996

Concept of quasiparticle in thermofield dynamics for nonequilibrium systems

Yamanaka, Y. & Nakamura, K., 1996 12, : : Physics Essays. 9, 4, p. 617-623 7 p.

研究成果: Article

Alberta
5 引用 (Scopus)

Quantum dephasing by chaos

Nakazato, H., Namiki, M., Pascazio, S. & Yamanaka, Y., 1996 10 28, : : Physics Letters, Section A: General, Atomic and Solid State Physics. 222, 3, p. 130-136 7 p.

研究成果: Article

chaos
degrees of freedom
detectors
interactions
2 引用 (Scopus)

Thermal field theory in non-equilibrium states

Henning, P. A., Nakamura, K. & Yamanaka, Y., 1996 6 30, : : International Journal of Modern Physics B. 10, 13-14, p. 1599-1614 16 p.

研究成果: Article

Statistical mechanics
Quantum Effects
Quantum Field Theory
Field Theory
Non-equilibrium
1995
25 引用 (Scopus)

Tunneling time based on the quantum diffusion process approach

Imafuku, K., Ohba, I. & Yamanaka, Y., 1995 8 28, : : Physics Letters A. 204, 5-6, p. 329-335 7 p.

研究成果: Article

simulation
1993
7 引用 (Scopus)

A Time‐Dependent Nonequilibrium Calculational Scheme towards the Study of Temperature Fluctuations

Evans, T. S., Hardman, I., Umezawa, H. & Yamanaka, Y., 1993, : : Fortschritte der Physik. 41, 2, p. 151-175 25 p.

研究成果: Article

formalism
vacuum
vector spaces
state vectors
ionic collisions