dorsal/arxiv
View SchemaMulti-mode density matrices of light via amplitude and phase control
| Authors | T. Opatrny, D. -G. Welsch, W. Vogel |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9604020 |
| URL | https://arxiv.org/abs/quant-ph/9604020 |
| DOI | 10.1016/S0030-4018(96)00548-2 |
Abstract
A new method is described for determining the quantum state of correlated multimode radiation by interfering the modes and measuring the statistics of the superimposed fields in four-port balanced homodyne detection. The full information on the $N$-mode quantum state is obtained by controlling both the relative amplitudes and the phases of the modes, which simplifies the reconstruction of density matrices to only $N+1$ Fourier transforms. In particular, this method yields time-correlated multimode density matrices of optical pulses by superimposing the signal by a sequence of short local-oscillator pulses.
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"abstract": "A new method is described for determining the quantum state of correlated\nmultimode radiation by interfering the modes and measuring the statistics of\nthe superimposed fields in four-port balanced homodyne detection. The full\ninformation on the $N$-mode quantum state is obtained by controlling both the\nrelative amplitudes and the phases of the modes, which simplifies the\nreconstruction of density matrices to only $N+1$ Fourier transforms. In\nparticular, this method yields time-correlated multimode density matrices of\noptical pulses by superimposing the signal by a sequence of short\nlocal-oscillator pulses.",
"arxiv_id": "quant-ph/9604020",
"authors": [
"T. Opatrny",
"D. -G. Welsch",
"W. Vogel"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/S0030-4018(96)00548-2",
"title": "Multi-mode density matrices of light via amplitude and phase control",
"url": "https://arxiv.org/abs/quant-ph/9604020"
},
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