73 citations · 179 across the 24 of their papers we have counts for
24 papers
Mutual entropy and thermal area law in C*-algebraic quantum lattice systems
Hajime Moriya
We present a general definition of quantum mutual entropy for infinitely extended quantum spin and fermion lattice systems. Using this, we establish a thermal area law in these inf…
Continuous extension of the discrete shift translations on one-dimensional quantum lattice systems
Hajime Moriya, Heide Narnhofer
We study the continuous extension of discrete shift translations on one-dimensional quantum lattice systems.
Polaronic Proton and Diproton Clustering in Neutron-Rich Matter
Hiroyuki Tajima, Hajime Moriya, Wataru Horiuchi +2
We show that strong spin-triplet neutron-proton interaction causes polaronic protons to occur in neutron matter at subnuclear densities and nonzero temperature. As the neutron dens…
Resonance-to-bound transition of He in neutron matter and its analogy with heteronuclear Feshbach molecule
Hiroyuki Tajima, Hajime Moriya, Wataru Horiuchi +2
We theoretically investigate the fate of a neutron-alpha -wave resonance in dilute neutron matter, which may be encountered in neutron stars and supernova explosions. While …
Nonexistence of spontaneous symmetry breakdown of time-translation symmetry on general quantum systems: Any macroscopic order parameter moves not!
Hajime Moriya
This review informs that the impossibility of genuine quantum time crystals has been known in the C*-algebraic quantum statistical mechanics since 1970s. The KMS condition implies…
Binding two and three particles in cold neutron matter
H. Moriya, H. Tajima, W. Horiuchi +2
We elucidate the fate of neighboring two and three- particles in cold neutron matter by focusing on an analogy between such systems and Fermi polarons realized in ultracold…