Decoherence-free measurement of wavefunction collapse with interferometers in quantum superpositions
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918056139161600 |
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| author | Quandt-Wiese, Garrelt |
| author_facet | Quandt-Wiese, Garrelt |
| contents | A novel approach for measuring wavefunction collapse is proposed which, unlike interferometric measurements, is not affected by decoherence. A mirror of a Michelson interferometer is transferred into a quantum superposition, where the decay of the mirror superposition is measured by the fact that it affects the probability of detecting photons in the interferometer. The experiment can be realised with currently available technology for photon generation and detection and is suitable for testing collapse models, which is shown by calculating the expected outcomes for the gravity-based models of Diósi and Penrose. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_10709 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Decoherence-free measurement of wavefunction collapse with interferometers in quantum superpositions Quandt-Wiese, Garrelt Quantum Physics A novel approach for measuring wavefunction collapse is proposed which, unlike interferometric measurements, is not affected by decoherence. A mirror of a Michelson interferometer is transferred into a quantum superposition, where the decay of the mirror superposition is measured by the fact that it affects the probability of detecting photons in the interferometer. The experiment can be realised with currently available technology for photon generation and detection and is suitable for testing collapse models, which is shown by calculating the expected outcomes for the gravity-based models of Diósi and Penrose. |
| title | Decoherence-free measurement of wavefunction collapse with interferometers in quantum superpositions |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2503.10709 |