Publication details
Gaussian Quantum Marginal Problem
| Authors | |
|---|---|
| Year of publication | 2008 |
| Type | Article in Periodical |
| Magazine / Source | Communications in Mathematical Physics |
| MU Faculty or unit | |
| Citation | |
| Web | http://www.springerlink.com/content/02808238l052xg78/ |
| Field | Theoretical physics |
| Keywords | Gaussian states; symplectic eigenvalues; density matrix; |
| Description | The quantum marginal problem asks what local spectra are consistent with a given spectrum of a joint state of a composite quantum system. We solve this problem for Gaussian states for any number of modes, for both pure and mixed states, and formulate the solution in terms of a set of necessary and sufficient conditions. Our result determines what local temperatures or entropies are consistent with a pure or mixed Gaussian state of several modes. |
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