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arXiv · 0705.3952

Amplitude Damping for single-qubit System with single-qubit mixed-state Environment

Eylee Jung·Mi-Ra Hwang·You Hwan Ju·D. K. Park·Hungsoo Kim·Min-Soo Kim·Jin-Woo Son
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Abstract

We study a generalized amplitude damping channel when environment is initially in the single-qubit mixed state. Representing the affine transformation of the generalized amplitude damping by a three-dimensional volume, we plot explicitly the volume occupied by the channels simulatable by a single-qubit mixed-state environment. As expected, this volume is embedded in the total volume by the channels which is simulated by two-qubit enviroment. The volume ratio is approximately 0.08 which is much smaller than 3/8, the volume ratio for generalized depolarizing channels.

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Eylee Jung, Mi-Ra Hwang, You Hwan Ju, D. K. Park, Hungsoo Kim, Min-Soo Kim, Jin-Woo Son. 2007-12-14. Amplitude Damping for single-qubit System with single-qubit mixed-state Environment. https://doi.org/10.1088/1751-8113/41/4/045306

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