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Open Quantum Systems Decoherence

Run-and-Tumble Dynamics and Zeno--Anti-Zeno Transition in Biased Quantum Trajectories

arXiv
Authors: Aritra Kundu

Year

2025

Paper ID

36308

Status

Preprint

Abstract Read

~2 min

Abstract Words

99

Citations

N/A

Abstract

We identify the transition from the oscillatory Rabi regime to the localized Zeno/Anti-Zeno regime in continuous measurement and feedback of a qubit as a quantum analogue of Motility-Induced Phase Separation (MIPS). A mapping between a biased monitored qubit and a classical "Run-and-Tumble" active particle is studied. We demonstrate that the competition between coherent Rabi driving (analogous to active motility) and measurement-induced feedback bias (analogous to persistence) mimics the behavior of biological swimmers. This framework provides a picture of measurement-induced phase transitions using the language of active matter and offering a novel pathway for designing dissipative noisy quantum systems.

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  • We identify the transition from the oscillatory Rabi regime to the localized Zeno/Anti-Zeno regime in continuous measurement and feedback of a qubit as a quantum analogue of...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2512.20519 [2] arXiv https://arxiv.org/abs/2512.20519 [3] Publisher https://arxiv.org/abs/2512.20519

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