Photon-number moments and cumulants of Gaussian states
We develop closed-form expressions for the moments and cumulants of Gaussian states when measured in the photon-number basis. We express the photon-number moments of a Gaussian state in terms of the loop Hafnian, a function that when applied to a $(0,1)$-matrix representing the adjacency of a graph,...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
2024-11-01
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| Series: | Quantum |
| Online Access: | https://quantum-journal.org/papers/q-2024-11-13-1521/pdf/ |
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