Leuchs G (2006)
Publication Type: Journal article
Publication year: 2006
Publisher: American Physical Society
Book Volume: 97
Pages Range: 053601
DOI: 10.1103/PhysRevLett.97.053601
A scheme for optimal and deterministic linear optical purification of mixed squeezed Gaussian states is proposed and experimentally demonstrated. The scheme requires only linear optical elements and homodyne detectors, and allows the balance between purification efficacy and squeezing degradation to be controlled. One particular choice of parameters gave a tenfold reduction of the thermal noise with a corresponding squeezing degradation of only 11%. We prove optimality of the protocol, and show that it can be used to enhance the performance of quantum informational protocols such as dense coding and entanglement generation. © 2006 The American Physical Society.
APA:
Leuchs, G. (2006). Squeezed-state purification with linear optics and feedforward. Physical Review Letters, 97, 053601. https://dx.doi.org/10.1103/PhysRevLett.97.053601
MLA:
Leuchs, Gerd. "Squeezed-state purification with linear optics and feedforward." Physical Review Letters 97 (2006): 053601.
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