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Explicit effective Hamiltonians for general linear quantum-optical networks | U. Leonhardt
; A. Neumaier
; | Date: |
18 Jun 2003 | Journal: | Journal of Optics B 6, L1 (2003) | Subject: | quant-ph | 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. | Source: | arXiv, quant-ph/0306123 | Services: | Forum | Review | PDF | Favorites |
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