Universal quantum frequency comb measurements by spectral mode-matching
- URL: http://arxiv.org/abs/2405.18454v1
- Date: Tue, 28 May 2024 15:17:21 GMT
- Title: Universal quantum frequency comb measurements by spectral mode-matching
- Authors: Bakhao Dioum, Virginia D'Auria, Alessandro Zavatta, Olivier Pfister, Giuseppe Patera,
- Abstract summary: We present the first general approach to make arbitrary, one-shot measurements of a multimode quantum optical source.
This approach uses spectral mode-matching, which can be understood as interferometry with a memory effect.
- Score: 39.58317527488534
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The frequency comb of a multimode interferometer offers exceptional scalability potential for field-encoded quantum information. However, the staple field detection method, homodyne detection, cannot access quantum information in the whole comb because some spectral quadratures (and their asymmetries with respect to the LO) are out of reach. We present here the first general approach to make arbitrary, one-shot measurements of a multimode quantum optical source, something that is required for photonic quantum computing and is not possible when using homodyne detection with a pulse-shaped LO. This approach uses spectral mode-matching, which can be understood as interferometry with a memory effect. We derive a complete formalism and propose an implementation by microcavity arrays.
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