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Renormalized quantum tomography |
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| Authors: | G.M. D'Ariano M.F. Sacchi |
| Affiliation: | a QUIT Group, Dipartimento di Fisica “A. Volta”, via A. Bassi 6, I-27100 Pavia, Italy b INFN Sezione di Pavia, via A. Bassi 6, I-27100 Pavia, Italy c QUIT Group, CNISM, Dipartimento di Fisica “A. Volta”, via A. Bassi 6, I-27100 Pavia, Italy d CNR-INFM, Italy |
| Abstract: | Quantum tomography allows to expand operators over functions of a continuous set of spectral densities — the so-called quorum of observables. We present new nontrivial operator expansions for the quorum of quadratures of the harmonic oscillator, and introduce a general framework to generate new expansions based on the Kolmogorov construction. |
| Keywords: | 03.65.Wj 02.30.Tb 42.50.-p |
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