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Optimal squeezing and entanglement from noisy Gaussian operations

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N. Schuch, M.M. Wolf, J.I. Cirac

Quantum Physics · Submitted 19 May 2005

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Both single and repeated uses of the device are optimized analytically and it is proven that in the latter case the squeezing converges exponentially fast to its asymptotic optimum, which we determine explicitly.

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arXiv IDquant-ph/0505145 (version 2)
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CitationJ.I. Cirac, M.M. Wolf, N. Schuch. "Optimal squeezing and entanglement from noisy Gaussian operations." arXiv:quant-ph/0505145 (2005). https://pith.science/paper/RDYKPIIF
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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,590 input tokens.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.25 · human participants 0.01 · controlled comparison 0.06 · randomized assignment 0.01 · states quantitative result 0.26 · compares with prior results 0.09 · mentions code or data availability 0.02.

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arXiv listing abstract v2. Results and the main claim are underlined; .

We investigate the creation of squeezing via operations subject to noise and losses and ask for the optimal use of such devices when supplemented by noiseless passive operations. Both single and repeated uses of the device are optimized analytically and it is proven that in the latter case the squeezing converges exponentially fast to its asymptotic optimum, which we determine explicitly. For the case of multiple iterations we show that the optimum can be achieved with fixed intermediate passive operations. Finally, we relate the results to the generation of entanglement and derive the maximal two-mode entanglement achievable within the considered scenario.

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#sentencerolethe authors' own workstates the main conclusionstrength
s0 We investigate the creation of squeezing via operations subject to noise and losses and ask for the optimal use of such devices when supplemented by noiseless passive operations. contribution 0.83 0.75 0.07 asserted 0.55
s1 Both single and repeated uses of the device are optimized analytically and it is proven that in the latter case the squeezing converges exponentially fast to its asymptotic optimum, which we determine explicitly. result 0.81 0.95 0.30 asserted 1.00
s2 For the case of multiple iterations we show that the optimum can be achieved with fixed intermediate passive operations. result 0.95 0.94 0.16 asserted 1.00
s3 Finally, we relate the results to the generation of entanglement and derive the maximal two-mode entanglement achievable within the considered scenario. result 0.80 0.95 0.23 asserted 1.00

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 1.00.

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

We investigate the creation of squeezing via operations subject to noise and losses and ask for the optimal use of such devices when supplemented by noiseless passive operations. Both single and repeated uses of the device are optimized analytically and it is proven that in the latter case the squeezing converges exponentially fast to its asymptotic optimum, which we determine explicitly. For the case of multiple iterations we show that the optimum can be achieved with fixed intermediate passive operations. Finally, we relate the results to the generation of entanglement and derive the maximal two-mode entanglement achievable within the considered scenario.

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