32 citations · 112 across the 11 of their papers we have counts for
11 papers
Universal Constraints on Relaxation Times for d-level GKLS master equations
Gen Kimura, Shigeru Ajisaka, Kyouhei Watanabe
In 1976, Gorini, Kossakowski, Sudarshan and Lindblad independently discovered a general form of master equations for an open quantum Markovian dynamics. In honor of all the authors…
Decoherence of Nitrogen Vacancy Centers in Diamond
Shigeru Ajisaka, Y. B. Band
We model the decoherence and dephasing of nitrogen vacancy (NV) centers in diamond due to a noisy paramagnetic bath, with and without the presence of a rf field that couples levels…
The Molecular Photo-Cell: Quantum Transport and Energy Conversion at Strong Non-Equilibrium
Shigeru Ajisaka, Bojan Zunkovic, Yonatan Dubi
Non-equilibrium transport properties and energy conversion performance of a molecular photo-voltaic cell are analyzed using the Lindblad master equation within the open quantum sys…
Nonequilibrium Quantum Phase Transitions in the XY model: comparison of unitary time evolution and reduced density matrix approaches
Shigeru Ajisaka, Felipe Barra, Bojan Žunkovič
We study nonequilibrium quantum phase transitions in XY spin 1/2 chain using the algebra. We show that the well-known quantum phase transition at magnetic field persi…
Nonequilibrium mesoscopic Fermi reservoirs distributions and particle current through a coherent quantum system
Shigeru Ajisaka, Felipe Barra
We study particle current and occupation distribution in a recently proposed model for coherent quantum transport. In this model a system connected to mesoscopic Fermi reservoirs (…
Current in coherent quantum systems connected to mesoscopic Fermi reservoirs
S. Ajisaka, F. Barra, C. Mejia-Monasterio +1
We study particle current in a recently proposed model for coherent quantum transport. In this model a system connected to mesoscopic Fermi reservoirs (meso-reservoir) is driven ou…