61 citations · 114 across the 6 of their papers we have counts for
6 papers
Multicritical deconfined quantum-criticality and Lifshitz point of a helical valence-bond phase
Bowen Zhao, Jun Takahashi, Anders W. Sandvik
The square-lattice - model hosts a deconfined quantum phase transition between antiferromagnetic and dimerized (valence-bond solid) ground states. We here study two d…
Tunable deconfined quantum criticality and interplay of different valence-bond solid phases
Bowen Zhao, Jun Takahashi, Anders W. Sandvik
We use quantum Monte Carlo simulations to study a quantum spin model with competing multi-spin interactions. We find a quantum phase transition between a columnar valence-b…
Valence-bond solids, vestigial order, and emergent SO(5) symmetry in a two-dimensional quantum magnet
Jun Takahashi, Anders W. Sandvik
We introduce a quantum spin-1/2 model with many-body correlated Heisenberg-type interactions on the 2D square lattice, designed to host a plaquette valence-bond solid (PVBS) ground…
Comment on "Gapless spin liquid ground state of the spin- - Heisenberg model on square lattices"
Bowen Zhao, Jun Takahashi, Anders W. Sandvik
Liu et al. [Phys.Rev.B 98, 241109 (2018)] used Monte Carlo sampling of the physical degrees of freedom of a Projected Entangled Pair State (PEPS) type wave function for the …
How to Measure the Quantum State of Collective Atomic Spin Excitation
Koji Usami, Jun-ichi Takahashi, Mikio Kozuma
The spin state of an atomic ensemble can be viewed as two bosonic modes, i.e., a quantum signal mode and a -numbered ``local oscillator'' mode when large numbers of spin-1/2 ato…
Effect of hydrostatic pressure on irreversible thermal transformations in a polymer glass at low temperatures
J. Takahashi, A. Suisalu, An. Kuznetsov +3
Irreversible broadening of spectral holes in chlorin-doped polystyrene glass was studied for the first time in the temperature cycling experiments under high pressure (by raising t…