Measurement Induced Subradiance
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866910025726820352 |
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| author | Bar, Ipsita Thakar, Aditi Venkatesh, B. Prasanna |
| author_facet | Bar, Ipsita Thakar, Aditi Venkatesh, B. Prasanna |
| contents | Preparing subradiant steady states of collectively emitting quantum two-level emitters (TLEs) is hindered by their dark, weakly interacting nature. Existing approaches rely on patterned driving, local control, or structured environments. We propose a platform-independent protocol based on projective measurements on a single TLE. For permutation-symmetric ensembles, a single measurement yields appreciable occupation of single-excitation subradiant steady states. For generic arrays, repeated measurements on one emitter drive the unmeasured TLEs into a nearly pure state with large overlap with the subradiant Dicke subspace. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_16413 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Measurement Induced Subradiance Bar, Ipsita Thakar, Aditi Venkatesh, B. Prasanna Quantum Physics Preparing subradiant steady states of collectively emitting quantum two-level emitters (TLEs) is hindered by their dark, weakly interacting nature. Existing approaches rely on patterned driving, local control, or structured environments. We propose a platform-independent protocol based on projective measurements on a single TLE. For permutation-symmetric ensembles, a single measurement yields appreciable occupation of single-excitation subradiant steady states. For generic arrays, repeated measurements on one emitter drive the unmeasured TLEs into a nearly pure state with large overlap with the subradiant Dicke subspace. |
| title | Measurement Induced Subradiance |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2602.16413 |