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arXiv · 2604.25640

Continuous Reset-Induced Phase Transition in Measurement-Free Random Quantum Circuits

Hinata Yokoyama·Kengo Anzai·Dina Syverud-Lindland·Yoshihito Kuno·Hiroaki Matsueda
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Abstract

We study a random unitary quantum circuit with only reset channels, which has high feasibility for real quantum devices. In particular, we investigate the many-body statistical physics properties, "reset-induced" entanglement phase transitions comparing the classical statistical picture in the large "$d$" limit of qudits. In the property of the reset-induced phase transition the parameter of qudit $d$ is essential. That is, the transition properties induced by the reset channel significantly depend on $d$. We numerically elucidate this statement employing efficient stabilizer circuit simulations for $d=2$. Specifically, large fluctuations are observed near the critical point, indicating that the reset-induced phase transition is continuous. We obtain clear data collapses, consistent with a second-order mixed phase transition. This behavior differs from expectations based on the classical statistical mapping in the large-$d$ limit.

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Hinata Yokoyama, Kengo Anzai, Dina Syverud-Lindland, Yoshihito Kuno, Hiroaki Matsueda. 2026-04-28. Continuous Reset-Induced Phase Transition in Measurement-Free Random Quantum Circuits. https://arxiv.org/abs/2604.25640

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