Operating a contextual Stern-Gerlach apparatus

• URL: http://arxiv.org/abs/2604.24727v1
• Date: Mon, 27 Apr 2026 17:37:17 GMT
• Title: Operating a contextual Stern-Gerlach apparatus
• Abstract summary: We propose a contextual cavity/circuit QED analogue and extension of the Stern-Gerlach experiment.<n>The pseudo-spin of a two-state atomic' transition plays the role of the spin'', while the resonant field driving the transition stands for the magnetic field''
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a contextual cavity/circuit QED analogue and extension of the Stern-Gerlach experiment, where the pseudo-spin of a two-state `atomic' transition plays the role of the ``spin'', while the resonant field driving the transition stands for the ``magnetic field''. A phase-sensitive continuous detection of the cavity field coupled to the induced `atomic' dipole affects the stability of the two distinct outcomes. The dressed states comprising the latter give their place to a self-consistent spontaneous dressed-state polarization as the driving strength is lowered. The associated evolution proves anew highly contextual, underpinned by a persistent production of coherent-state superpositions for a particular setting of the monitoring device. Finally, when bistability is absent, we employ the photoelectron `atomic' emission statistics as a diagnostic tool of the cavity field fluctuations.

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