Optically controlled spin-glasses in multi-qubit cavity systems

TL;DR

This paper predicts that optically controlled multi-qubit cavity systems can exhibit tunable spin-glass phase transitions involving both matter and radiation, offering new avenues for quantum phase control.

Contribution

It introduces a theoretical framework for spin-glass phases in optically controlled multi-qubit cavity systems, highlighting their tunability via matter-radiation coupling.

Findings

Prediction of spin-glass phases in optical cavity systems

Phase transitions tunable by matter-radiation coupling strength

Novel matter-radiation coupled phase phenomena

Abstract

Recent advances in nanostructure fabrication and optical control, suggest that it will soon be possible to prepare collections of interacting two-level systems (i.e. qubits) within an optical cavity. Here we show theoretically that such systems could exhibit novel phase transition phenomena involving spin-glass phases. By contrast with traditional realizations using magnetic solids, these phase transition phenomena are associated with both matter and radiation subsystems. Moreover the various phase transitions should be tunable simply by varying the matter-radiation coupling strength.