Abstract
Linear optical networks are devices that turn classical incident modes by a linear transformation into outgoing ones. In general, the quantum version of such transformations may mix annihilation and creation operators. We derive a simple formula for the effective Hamiltonian of a general linear quantum network, if such a Hamiltonian exists. Otherwise we show how the scattering matrix of the network is decomposed into a product of three matrices that can be generated by Hamiltonians.
| Original language | English |
|---|---|
| Pages (from-to) | L1-L4 |
| Number of pages | 4 |
| Journal | Journal of Optics B: Quantum and Semiclassical Optics |
| Volume | 6 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2004 |
Keywords
- quantum-optical networks
- quantum information
- LOSSLESS BEAM SPLITTER
- SU(2) SYMMETRY
- STATISTICS
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