Publication details
Gaussian Quantum Marginal Problem
| Basic information | |
|---|---|
| Original title: | Gaussian Quantum Marginal Problem |
| Authors: | Jens Eisert, Tomáš Tyc, Terry Rudolph, Barry Sanders |
| Further information | |
|---|---|
| Citation: | EISERT, Jens  - TYC, Tomáš - RUDOLPH, Terry - SANDERS, Barry. Gaussian Quantum Marginal Problem. Communications in Mathematical Physics, Berlin / Heidelberg, Springer, Germany. ISSN 0010-3616, 2008, vol. 280, no. 1, pp. 263-280. |
| Original language: | English |
| Field: | Theoretical physics |
| WWW: |  http://www.springerlink.com/content/02808238l052xg78/ |
| Type: | Article in Periodical |
| Keywords: | Gaussian states; symplectic eigenvalues; density matrix; |
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.
Related projects:
- Highly Parallel and Distributed Computing Systems
- Mathematical structures and their physical applications
