625 citations · 1.4k across the 20 of their papers we have counts for
21 papers
Mutual Friction in Dissipative Gross-Pitaevskii Thermal Counterflow Turbulence
Kyo Yoshida, Hideaki Miura, Yoshiyuki Tsuji
We report numerical simulations of the dissipative Gross-Pitaevskii equation for a bulk region of thermal-counterflow turbulence. Quasistationary states are obtained over a range o…
Numerical search for states with constant enstrophy flux over finite time intervals in two-dimensional turbulence
Kyo Yoshida
An ensemble model of turbulence based on states with constant flux in wavenumber space was proposed in [K. Yoshida, Phys. Rev. E, 106, 045106 (2022)]. The justification of this ens…
Quantum vortex identification method and its application to Gross-Pitaevskii simulation
Naoto Sakaki, Hideaki Miura, Kyo Yoshida +1
A method to identify a quantum vortex in a three-dimensional Gross-Pitaevskii simulation has been developed. A quantum vortex was identified by the use of eigenvalues and eigenvect…
Universal Scaling Bounds on a Quantum Heat Current
Shunsuke Kamimura, Kyo Yoshida, Yasuhiro Tokura +1
We derive new bounds on a heat current flowing into a quantum -particle system coupled with a Markovian environment. By assuming that a system Hamiltonian and a system-environme…
Quantum battery based on superabsorption
Yudai Ueki, Shunsuke Kamimura, Yuichiro Matsuzaki +2
A quantum battery is a device where an energy is charged by using a quantum effect. Here, we propose a quantum battery with a charger system composed of qubits by utilizing a c…
Ensemble model of turbulence based on states of constant flux in wavenumber space
Kyo Yoshida
An ensemble model of turbulence is proposed. The ensemble consists of flow fields in which the flux of an inviscid conserved quantity, such as energy (or enstrophy in two-dimension…
Quantum-Enhanced Heat Engine Based on Superabsorption
S. Kamimura, H. Hakoshima, Y. Matsuzaki +2
We propose a quantum-enhanced heat engine with entanglement. The key feature of our scheme is superabsorption, which facilitates enhanced energy absorption by entangled qubits. Whe…
Hessian-based Lagrangian closure theory for passive scalar turbulence
Taketo Ariki, Kyo Yoshida
Self-consistent closure theory for passive-scalar turbulence has been developed on the basis of the Hessian of the scalar field. As a primitive indicator of spatial structure of th…
Boltzmann entropy for quantum field systems
Kyo Yoshida
A way to construct Boltzmann entropy, i.e., the entropy as a function of a microscopic pure state, for quantum field systems is proposed. Operators that shift the field in wavevect…
Evidence for Direct CP Violation in B0 -> K+- pi-+ Decays
Y. Chao
We report evidence for direct CP violation in the decay B0 -> K+-pi-+ with 253/fb of data collected with the Belle detector at the KEKB e+e- collider. Using 275 million B B_bar pai…
Measurement of the inclusive semileptonic branching fraction of B mesons and |Vcb|
The Belle collaboration
We present a measurement of the electron spectrum from inclusive semileptonic {\it B} decay, using 5.1 fb of data collected with the Belle detector. A high-momentum…
Improved Measurement of Mixing-induced CP Violation in the Neutral B Meson System
The Belle Collaboration, K. Abe
We present an improved measurement of the standard model CP violation parameter sin2phi_1 (also known as sin2beta) based on a sample of 85 times 10^6 B Bbar pairs collected at the…
Measurements of Branching Fractions and Decay Amplitudes in B-> J/ψK^* decays
Belle Collaboration, K. Abe
The branching fractions and the decay amplitudes of B -> J/psi K^* decays are measured in a 29.4/fb data sample collected with the Belle detector at the KEKB electron-positron coll…
Search for Charmless Two-body Baryonic Decays of B Mesons
K. Abe, The Belle Collaboration
We report the results of a search for the rare baryonic decays , , and . The analysis is based on a data set of …
Measurement of Br(Bbar -> D+l-nubar) and Determination of |Vcb|
Belle Collaboration, K. Abe
We present a measurement of the branching fraction for the semileptonic B decay Bbar -> D+l-nubar, where l- can be either an electron or a muon. We find Gamma(Bbar -> D+l-nubar)= (…
Observation of Cabibbo-suppressed and W-exchange Lambda_c^+ baryon decays
Belle Collaboration, K. Abe
We present measurements of the Cabibbo-suppressed decays Lambda_c^+ --> Lambda0 K+ and Lambda_c^+ --> Sigma0 K+ (both first observations), Lambda_c^+ --> Sigma+ K+ pi- (seen with l…
A Measurement of Lifetime Difference in Meson Decays
Belle Collaboration, K. Abe
We report a measurement of the - mixing parameter using 23.4 fb of data collected near the (4S) resonance with the Belle detector at KEKB. $y_{…
Observation of Large CP Violation in the Neutral B Meson System
K. Abe, The Belle Collaboration
We present a measurement of the Standard Model CP violation parameter sin 2phi_1 based on a 29.1 fb^{-1} data sample collected at the Upsilon(4S) resonance with the Belle detector…
Search for Direct CP Violation in B -> K pi Decays
K. Abe
We search for direct CP violation in flavor specific B -> K pi decays by measuring the rate asymmetry between charge conjugate modes. The search is performed on a data sample of 11…
Observation of B->J/psi K1(1270)
K. Abe, Belle Collaboration
We report the first observation of the exclusive decay process B->J/psi K1(1270) using a sample of 11.2M BBbar meson pairs collected in the Belle detector at the KEKB asymmetric e+…
Measurement of B0d - B0d-bar mixing rate from the time evolution of dilepton events at the Upsilon(4S)
K. Abe
We report a determination of the B0d - B0d-bar mixing parameter Delta-m_d based on the time evolution of dilepton yields in Upsilon(4S) decays. The measurement is based on a 5.9 /f…