MASAO HIROKAWA

Schrödinger-cat-like states with dressed photons in renormalized adiabatic approximation for generalized quantum Rabi Hamiltonian with quadratic interaction

Masao Hirokawa

Physics Open 5 100039 9 2020 Peer-reviewed

Quantum Simulation of Interaction between Atom and Light

Hirokawa, Masao

RIMS Kokyuroku 2089 177 - 185 8 2018

A mathematical analysis of dressed photon in ground state of generalized quantum Rabi model using pair theory

Masao Hirokawa, Jacob S. Moller, Itaru Sasaki

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 50(18) 184003-1 - 184003-20 5 2017 Peer-reviewed Invited

A mathematical modeling of electron-phonon interaction for small wave numbers close to zero

Hirokawa, Masao

EMS Series of Congress Reports, ``Functional Analysis and Operator Theory for Quantum Physics'' Pavel Exner Anniversary Volume 373 - 400 5 1, 2017 Peer-reviewed Invited

Duality between a dark state and a quasi-dark state

Masao Hirokawa

ANNALS OF PHYSICS 377 229 - 242 2 2017 Peer-reviewed

The Rabi model gives off a flavor of spontaneous SUSY breaking

Hirokawa, Masao

Quantum Studies: Mathematics and Foundations 2(4) 379 - 388 12 2015 Peer-reviewed

Absence of energy level crossing for the ground state energy of the Rabi model

Masao Hirokawa, Fumio Hiroshima

Communications on Stochastic Analysis 8(4) 551 - 560 12 2014 Peer-reviewed

The Rabi Model in SUSYQM

RIMS Kokyuroku 1921(1921) 91 - 101 10 2014 Invited

A mathematical aspect of a tunnel-junction for spintronic qubit

Masao Hirokawa, Takuya Kosaka

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS 417(2) 856 - 872 9 2014 Peer-reviewed

Spin-boson model through a Poisson-driven stochastic process

Masao Hirokawa, Fumio Hiroshima, Jozsef Lorinczi

MATHEMATISCHE ZEITSCHRIFT 277(3-4) 1165 - 1198 8 2014 Peer-reviewed

One Dimensional Tunnel-Junction Formulae with Application to Single Electron

RIMS Kokyuroku 1902 36 - 52 6 2014 Invited

ONE-DIMENSIONAL TUNNEL-JUNCTION FORMULA FOR THE SCHRODINGER PARTICLE

Masao Hirokawa, Takuya Kosaka

SIAM JOURNAL ON APPLIED MATHEMATICS 73(6) 2247 - 2261 2013 Peer-reviewed

Boundary Conditions in One-dimensional Tunneling Junction

Yutaka Shikano, Masao Hirokawa

INTERNATIONAL SYMPOSIUM: NANOSCIENCE AND QUANTUM PHYSICS 2011 (NANOPHYS'11) 302(1) 0124044-1 - 0124044-4 2011 Peer-reviewed

Role of a phase factor in the boundary condition of a one-dimensional junction

Yoshiyuki Furuhashi, Masao Hirokawa, Kazumitsu Nakahara, Yutaka Shikano

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 43(35) 9 2010

Dicke-type energy level crossings in cavity-induced atom cooling: Another superradiant cooling

Masao Hirokawa

PHYSICAL REVIEW A 79(4) 4 2009

The Dicke-Type Crossings among Eigenvalues of Differential Operators in A Class of Non-Commutative Oscillators

Masao Hirokawa

INDIANA UNIVERSITY MATHEMATICS JOURNAL 58(4) 1493 - 1535 2009

Regularities of ground states of quantum field models

Asao Arai, Masao Hirokawa, Fumio Hiroshima

KYUSHU JOURNAL OF MATHEMATICS 61(2) 321 - 372 9 2007

Infrared catastrophe for Nelson's model - Non-existence of ground state and soft-boson divergence

Masao Hirokawa

PUBLICATIONS OF THE RESEARCH INSTITUTE FOR MATHEMATICAL SCIENCES 42(4) 897 - 922 12 2006

Ground state for point particles interacting through a massless scalar Bose field

M Hirokawa, F Hiroshima, H Spohn

ADVANCES IN MATHEMATICS 191(2) 339 - 392 3 2005 Peer-reviewed

Binding energy for hydrogen-like atoms in the Nelson model without cutoffs

C Hainzl, M Hirokawa, H Spohn

JOURNAL OF FUNCTIONAL ANALYSIS 220(2) 424 - 459 3 2005 Peer-reviewed

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