Quantum Manifestation of Converse Symmetry Breaking

Converse symmetry breaking (CSB) is a classical synchronization phenomenon in which parameter heterogeneity stabilizes otherwise unstable symmetric states. In the quantum regime, however, the phenomenology of synchronization is fundamentally different due to inherently quantum effects, such as Heisenberg uncertainty, discrete energy levels, and intrinsic quantum noise. This raises a central question: How does the quantumness of a system influence the emergence and nature of CSB? In this talk, I will present our theoretical study of CSB in quantum systems, showing how this classically rooted effect is modified, suppressed, or reshaped by the quantum phenomena. We identify the regimes and conditions under which quantum systems can preserve, transform, or lose patterns of synchronization when subject to different types of heterogeneity. These results have potential implications for synchronization phenomena underlying quantum clocks, coherent operation of multiple qubits, and pattern formation in time crystals.