Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Yuge, Tatsuro"'
Cathodoluminescence (CL), the emission of light induced by accelerated free electrons, has been extensively utilized in various applications, such as displays, streak cameras, and high-spatial-resolution analysis of optical material, surpassing the d
Externí odkaz:
http://arxiv.org/abs/2408.12824
Autor:
Yanagimoto, Sotatsu, Yamamoto, Naoki, Yuge, Tatsuro, Saito, Hikaru, Akiba, Keiichirou, Sannomiya, Takumi
Publikováno v:
Communications Physics, 6, 260 (2023)
Electron microscopy based on high-energy electrons allows nanoscopic analytical imaging taking advantage of secondarily generated particles. Especially for cathodoluminescence, the correlation between primary incident electrons and emitted photons in
Externí odkaz:
http://arxiv.org/abs/2301.07936
We propose a theoretical model of a master equation for cathodoluminescence (CL). The master equation describes simultaneous excitation of multiple emitters by an incoming electron and radiative decay of individual emitters. We investigate the normal
Externí odkaz:
http://arxiv.org/abs/2206.00933
The time-resolved physical spectrum of luminescence is theoretically studied for a standard cavity quantum electrodynamics system. In contrast to the power spectrum for the steady state, the correlation functions up to the present time are crucial fo
Externí odkaz:
http://arxiv.org/abs/2109.02287
Publikováno v:
Phys. Rev. Research 3, 013037 (2021)
We propose a Markovian quantum master equation that can describe the Fano effect directly, by assuming a standard cavity quantum electrodynamics system. The framework allows us to generalize the Fano formula, applicable over the weak and strong coupl
Externí odkaz:
http://arxiv.org/abs/2011.06245
Autor:
Yuge, Tatsuro, Yamaguchi, Makoto
Publikováno v:
Phys. Rev. E 101, 022113 (2020)
We derive an integral fluctuation theorem (FT) in a general setup of cavity quantum electrodynamics systems. In the derivation, a key difficulty lies in a diverging behavior of entropy change arising from the zero-temperature limit of an external bat
Externí odkaz:
http://arxiv.org/abs/1907.03463
Autor:
Sasaki, Susumu, Miura, Takanori, Ikeda, Kohsuke, Sakai, Masahiro, Sekikawa, Takuya, Saito, Masaki, Yuge, Tatsuro, Hirayama, Yoshiro
To identify the decoherence origin, frequency spectra using multiple {\pi}-pulses have been extensively studied. However, little has been discussed on how to define the spectral intensities from multiple-echo decays and how to incorporate the Hahn-ec
Externí odkaz:
http://arxiv.org/abs/1905.12906
Autor:
Yuge, Tatsuro
What are the conditions for adiabatic quantum computation (AQC) to outperform classical computation? Although there exist several quantum adiabatic algorithms achieving the strong quantum speedup, the essential keys to their speedups are still unclea
Externí odkaz:
http://arxiv.org/abs/1705.08117
Publikováno v:
Phys. Rev. E 95, 022119 (2017)
We investigate energy transfer by the radiation from a cavity quantum electrodynamics (QED) system in the context of quantum thermodynamics. We propose a method of decomposing it into work and heat within the framework of quantum master equations. We
Externí odkaz:
http://arxiv.org/abs/1609.02230
Publikováno v:
Phys. Rev. E 95, 012136 (2017)
By introducing a temporal change timescale $\tau_{\text{A}}(t)$ for the time-dependent system Hamiltonian, a general formulation of the Markovian quantum master equation is given to go well beyond the adiabatic regime. In appropriate situations, the
Externí odkaz:
http://arxiv.org/abs/1604.01082