High Fidelity Artificial Quantum Thermal State Generation using Encoded Coherent States
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866911676246261760 |
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| author | Weinstein, Haley Avritzer, Bruno Brun, Todd A. Habif, Jonathan L. |
| author_facet | Weinstein, Haley Avritzer, Bruno Brun, Todd A. Habif, Jonathan L. |
| contents | Quantum steganography is a powerful method for information security where communications between a sender and receiver are disguised as naturally occurring noise in a channel. We encoded the phase and amplitude of weak coherent laser states such that a third party monitoring the communications channel, measuring the flow of optical states through the channel, would see an amalgamation of states indistinguishable from thermal noise light. Using quantum state tomography, we experimentally reconstructed the density matrices for artificially engineered thermal states and spontaneous emission from an optical amplifier and verified a state fidelity F>0.98 when compared with theoretical thermal states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_03881 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | High Fidelity Artificial Quantum Thermal State Generation using Encoded Coherent States Weinstein, Haley Avritzer, Bruno Brun, Todd A. Habif, Jonathan L. Quantum Physics Optics Quantum steganography is a powerful method for information security where communications between a sender and receiver are disguised as naturally occurring noise in a channel. We encoded the phase and amplitude of weak coherent laser states such that a third party monitoring the communications channel, measuring the flow of optical states through the channel, would see an amalgamation of states indistinguishable from thermal noise light. Using quantum state tomography, we experimentally reconstructed the density matrices for artificially engineered thermal states and spontaneous emission from an optical amplifier and verified a state fidelity F>0.98 when compared with theoretical thermal states. |
| title | High Fidelity Artificial Quantum Thermal State Generation using Encoded Coherent States |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2405.03881 |