1 citations · 1 across the 5 of their papers we have counts for
6 papers
Exact Bethe quantum numbers of the massive XXZ chain in the two down-spin sector
Takashi Imoto, Tetsuo Deguchi
Every solution of the Bethe ansatz equations (BAE) is characterized by a set of quantum numbers called the Bethe quantum numbers, which are fundamental for evaluating it numericall…
Catastrophic failure of quantum annealing owing to non-stoquastic Hamiltonian and its avoidance by decoherence
Takashi Imoto, Yuichiro Matsuzaki
Quantum annealing (QA) is a promising method for solving combinatorial optimization problems whose solutions are embedded into a ground state of the Ising Hamiltonian. This method…
Quantum annealing with symmetric subspaces
Takashi Imoto, Yuya Seki, Yuichiro Matsuzaki
Quantum annealing (QA) is a promising approach for not only solving combinatorial optimization problems but also simulating quantum many-body systems such as those in condensed mat…
Generation of multipartite entanglement between spin-1 particles with bifurcation-based quantum annealing
Yuichiro Matsuzaki, Takashi Imoto, Yuki Susa
Quantum annealing is a way to solve a combinational optimization problem where quantum fluctuation is induced by transverse fields. Recently, a bifurcation-based quantum annealing…
Improving the accuracy of the energy estimation by combining quantum annealing with classical computation
Takashi Imoto, Yuya Seki, Yuichiro Matsuzaki +1
Quantum chemistry calculations are important applications of quantum annealing. For practical applications in quantum chemistry, it is essential to estimate a ground state energy o…
Exact regimes of collapsed and extra two-string solutions in the two down-spin sector of the spin-1/2 massive XXZ spin chain
Takashi Imoto, Jun Sato, Tetsuo Deguchi
We derive exactly the number of complex solutions with two down-spins in the massive regime of the periodic spin-1/2 XXZ spin chain of sites. Here we remark that every solution…