Author

Shion Yamashika

h-index 5 View on Semantic Scholar

We have 3 of 17 papers

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Sep 2026

The quantum Mpemba effect in symmetric random Clifford circuits

The quantum Mpemba effect is the counterintuitive phenomenon whereby a quantum state initially farther from equilibrium relaxes faster than one initially closer to it. We demonstrate this effect in random Clifford circuits with a conserved $\mathrm{U}(1)$ charge, using the entanglement asymmetry to characterize relaxat...

Shion Yamashika, F. Ares, Pasquale Calabrese · 1 citation

Preprint Sep 2026

The Role of Completeness in Probing Symmetry Breaking

Completeness is widely recognized in quantum information as an important property of a family of monotones, because it ensures that no information relevant to state conversion is lost. We show that completeness is also physically important in many-body systems: an incomplete measure of symmetry breaking can miss essent...

Yuya Kusuki, Hiroyasu Tajima, Shion Yamashika · 0 citations

Preprint Jul 2026

Permutationally Invariant Quantum State Tomography for Fermions

Quantum state tomography provides complete information about a quantum state, but its measurement cost generally grows exponentially with system size. In many-particle quantum simulators, this challenge is further compounded by the limited accessibility of local measurements and controls. Here we develop a tomography p...

Shion Yamashika, D. Yamamoto · 0 citations