Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Yoshitaka Tanimura"'
Publikováno v:
Structural Dynamics, Vol 2, Iss 5, Pp 054102-054102-21 (2015)
Recent developments in two-dimensional (2D) THz-Raman and 2D Raman spectroscopies have created the possibility for quantitatively investigating the role of many dynamic and structural aspects of the molecular system. We explain the significant points
Externí odkaz:
https://doaj.org/article/bcae531d757b4fd581af3eb67475ba35
Autor:
Atsunori Sakurai, Yoshitaka Tanimura
Publikováno v:
New Journal of Physics, Vol 16, Iss 1, p 015002 (2014)
The quantum dissipative dynamics of a tunneling process through double barrier structures is investigated on the basis of non-perturbative and non-Markovian treatment. We employ a Caldeira–Leggett Hamiltonian with an effective potential calculated
Externí odkaz:
https://doaj.org/article/29cf5c36d3d646228fe5f51ab8f25dd4
Autor:
Hideaki Takahashi, Yoshitaka Tanimura
A model of a bulk water system describing the vibrational motion of intramolecular and intermolecular modes is constructed, enabling analysis of its linear and nonlinear vibrational spectra, as well as the energy transfer processes between the vibrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d831e9dfdde30a573a3e5e46d7227bf
http://arxiv.org/abs/2302.09799
http://arxiv.org/abs/2302.09799
Autor:
Hideaki Takahashi, Yoshitaka Tanimura
To investigate the possibility of measuring the intermolecular and intramolecular anharmonic coupling of balk water, we calculate third-order two-dimensional (2D) infrared (IR) spectra and fifth-order 2D IR-IR-Raman-Raman spectra expressed in terms o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b6b28261752536c5264c95681dd4549
http://arxiv.org/abs/2302.09760
http://arxiv.org/abs/2302.09760
Autor:
Yoshitaka Tanimura, Shoki Koyanagi
Publikováno v:
The Journal of Chemical Physics. 157(8)
We investigate the efficiency of a quantum Carnot engine based on open quantum dynamics theory. The model includes time-dependent external fields for the subsystems controlling the isothermal and isentropic processes and for the system--bath (SB) int
Autor:
Yoshitaka Tanimura, Shoki Koyanagi
Publikováno v:
The Journal of chemical physics. 157(1)
Using the quasi-equilibrium Helmholtz energy (qHE), defined as the thermodynamic work in a quasi-static process, we investigate the thermal properties of both an isothermal process and a transition process between the adiabatic and isothermal states
Autor:
Kiyoto Nakamura, Yoshitaka Tanimura
Complex environments, such as molecular matrices and biological material, play a fundamental role in many important dynamic processes in condensed phases. Because it is extremely difficult to conduct full quantum dynamics simulations on such environm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::801f2f208f3de854f4c951c5e7edeef8
http://arxiv.org/abs/2111.13277
http://arxiv.org/abs/2111.13277
Autor:
Yoshitaka Tanimura, Yuki Iwamoto
Discretizing a distribution function in a phase space for an efficient quantum dynamics simulation is a non-trivial challenge, in particular for a case that a system is further coupled to environmental degrees of freedom. Such open quantum dynamics i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ec1f68bf1a70b7d915a5afa942712d9
https://doi.org/10.21203/rs.3.rs-670377/v1
https://doi.org/10.21203/rs.3.rs-670377/v1
Autor:
Yoshitaka Tanimura, Seiji Ueno
Publikováno v:
Journal of chemical theory and computation. 17(6)
Simulating the irreversible quantum dynamics of exciton and electron transfer problems poses a nontrivial challenge. Because the irreversibility of the system dynamics is a result of quantum thermal activation and dissipation caused by the surroundin
Autor:
Yoshitaka Tanimura, Jiaji ZHANG
Publikováno v:
The Journal of Chemical Physics. 156:174112
The partition function (PF) plays a key role in the calculation of quantum thermodynamic properties of a system that interacts with a heat bath. The imaginary-time hierarchical equations of motion (imHEOM) approach was developed to evaluate in a rigo