Feedback-Induced Quantum Phase Transitions Using Weak Measurements

D. A. Ivanov, T. Yu Ivanova, S. F. Caballero-Benitez, I. B. Mekhov

Research output

9 Citations (Scopus)

Abstract

We show that applying feedback and weak measurements to a quantum system induces phase transitions beyond the dissipative ones. Feedback enables controlling essentially quantum properties of the transition, i.e., its critical exponent, as it is driven by the fundamental quantum fluctuations due to measurement. Feedback provides the non-Markovianity and nonlinearity to the hybrid quantum-classical system, and enables simulating effects similar to spin-bath problems and Floquet time crystals with tunable long-range (long-memory) interactions.

Original languageEnglish
Article number010603
JournalPhysical Review Letters
Volume124
Issue number1
DOIs
Publication statusPublished - 6 Jan 2020

Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Feedback-Induced Quantum Phase Transitions Using Weak Measurements'. Together they form a unique fingerprint.

Cite this