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This research clarifies the temporal dynamics of spatial decoherence in strongly interacting many-body systems, demonstrating that the loss of quantum coherence unfolds on a defined timescale rather than occurring instantaneously. By resolving these dynamics under infinite coupling limits, the study provides critical theoretical tools for modeling environmental interactions and controlling macroscopic object localization.
Researchers Find Instant Spatial Decoherence in Systems
Until now, spatial decoherence has been treated as happening instantaneously, obscuring precisely *how* complex systems lose their quantum properties. This work reveals that when coupling strength approaches infinity, such loss isn’t immediate but unfolds on a defined timescale, τ = λt at α = 1. By resolving this temporal behaviour for strongly interacting many-body systems, it offers fresh insight into environmental interactions and potential applications like controlling macroscopic object localisation.
Many-body quantum systems experience instantaneous spatial decoherence when their interaction with a bosonic reservoir becomes infinitely strong. The process of how this unfolds over time is revealed, specifically showing that for appropriately scaled coupling strength and time, where short times are proportional to large coupling strengths raised to the power negative one, temporal dynamics of spatial decoherence can be precisely determined. Spatial decoherence occurs…
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