Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Teratani, Yoshimichi"'
Publikováno v:
Phys.Rev.B 110,035308 (2024)
We present a comprehensive Fermi-liquid description for thermoelectric transport and current noise, applicable to multilevel quantum dots (QD) and magnetic alloys (MA) without electron-hole or time-reversal symmetry. Our formulation for the low-energ
Externí odkaz:
http://arxiv.org/abs/2404.05947
Autor:
Hashimoto, Masashi, Teratani, Yoshimichi, Shirotani, Masaya, Nakata, Yukihiro, Shimamoto, Masashi, Tanaka, Yoichi, Yamada, Yasuhiro, Oguri, Akira
Publikováno v:
JPS Conf. Proc. 38, 011178 (2023)
We study the interplay between the Kondo and superconducting (SC) proximity effects, taking place in a triangular triple quantum dot (TTQD) connected to one normal and two SC leads. This system shows various quantum phases. Without the SC leads, the
Externí odkaz:
http://arxiv.org/abs/2401.11444
Autor:
Hashimoto, Masashi, Yamada, Yasuhiro, Tanaka, Yoichi, Teratani, Yoshimichi, Kemi, Takuro, Kawakami, Norio, Oguri, Akira
Publikováno v:
Phys. Rev. B 109, 035404 (2024)
We study the nonlocal magnetotransport through a strongly correlated quantum dot, connected to multiple terminals consisting of two normal and one superconducting (SC) leads. Specifically, we present a comprehensive view on the interplay between the
Externí odkaz:
http://arxiv.org/abs/2401.11434
Publikováno v:
Phys. Rev. B 108, 045109 (2023)
We study how bias and tunneling asymmetries affect nonlinear current through a quantum dot with $N$ discrete levels in the Fermi liquid regime, using an exact low-energy expansion of the current derived up to terms of order $V^3$ with respect to the
Externí odkaz:
http://arxiv.org/abs/2305.01162
Autor:
Sakano, Rui, Hata, Tokuro, Motoyama, Kaiji, Teratani, Yoshimichi, Tsutsumi, Kazuhiko, Arakawa, Tomonori, Ferrier, Meydi, Deblock, Richard, Eto, Mikio, Kobayashi, Kensuke, Oguri, Akira
Publikováno v:
Phys. Rev. B 108, 205147 (2023)
We theoretically and experimentally study the universal scaling property of the spin-1/2 Kondo state in the magnetic field dependence of bias-voltage linear conductance through a quantum dot at low temperatures. We discuss an efficient and reliable p
Externí odkaz:
http://arxiv.org/abs/2304.08544
Publikováno v:
Phys. Rev. B 105, 115409 (2022)
We present a complete microscopic Fermi-liquid description for next-to-leading order transport through an Anderson impurity under a finite bias voltage $V$. It is applicable to multilevel quantum dots without particle-hole or time-reversal symmetry,
Externí odkaz:
http://arxiv.org/abs/2111.10483
Publikováno v:
Phys. Rev. B 104, 235147 (2021)
We study the nonlinear conductance through a quantum dot, specifically its dependence on the asymmetries in the tunnel couplings and bias voltages $V$, at low energies. Extending the microscopic Fermi-liquid theory for the Anderson impurity model, we
Externí odkaz:
http://arxiv.org/abs/2110.03226
Autor:
Hata, Tokuro, Teratani, Yoshimichi, Arakawa, Tomonori, Lee, Sanghyun, Ferrier, Meydi, Deblock, Richard, Sakano, Rui, Oguri, Akira, Kobayashi, Kensuke
Publikováno v:
Nature Communications 12, 3233 (2021)
Behavior of quantum liquids is a fascinating topic in physics. Even in a strongly correlated case, the linear response of a given system to an external field is described by the fluctuation-dissipation relations based on the two-body correlations in
Externí odkaz:
http://arxiv.org/abs/2105.14664
Autor:
Teratani, Yoshimichi, Sakano, Rui, Hata, Tokuro, Arakawa, Tomonori, Ferrier, Meydi, Kobayashi, Kensuke, Oguri, Akira
Publikováno v:
Phys. Rev. B 102, 165106 (2020)
We study finite-temperature properties of the Kondo effect in a carbon nanotube (CNT) quantum dot using the Wilson numerical renormalization group (NRG). In the absence of magnetic fields, four degenerate energy levels of the CNT consisting of spin a
Externí odkaz:
http://arxiv.org/abs/2003.12715
Publikováno v:
Phys. Rev. Lett. 125, 216801 (2020)
We present a microscopic Fermi-liquid view on the low-energy transport through an Anderson impurity with $N$ discrete levels, at arbitrary electron filling $N_d$. It is applied to nonequilibrium current fluctuations, for which the two-quasiparticle c
Externí odkaz:
http://arxiv.org/abs/2001.08348