Quantum enhancement of spoofing detection with squeezed states of light
We employ quantum state discrimination theory to establish the ultimate limit for spoofing detection in electromagnetic signals encoded with random quantum states. Our analysis yields an analytical expression for the optimal bound, which we prove can be achieved using a pair of coherent states. Nota...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2024-11-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.6.043214 |
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| _version_ | 1850220474749943808 |
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| author | Tomás P. Espinoza Sebastian C. Carrasco José Rogan Juan Alejandro Valdivia Vladimir S. Malinovsky |
| author_facet | Tomás P. Espinoza Sebastian C. Carrasco José Rogan Juan Alejandro Valdivia Vladimir S. Malinovsky |
| author_sort | Tomás P. Espinoza |
| collection | DOAJ |
| description | We employ quantum state discrimination theory to establish the ultimate limit for spoofing detection in electromagnetic signals encoded with random quantum states. Our analysis yields an analytical expression for the optimal bound, which we prove can be achieved using a pair of coherent states. Notably, the quantum enhancement persists regardless of photon number, thereby removing the previous constraint to single-photon sources. This breakthrough unlocks new experimental possibilities using standard laser sources. Furthermore, we explore the encoding of squeezed states and demonstrate that the detection probability approaches 100% when the spoofer's capability is restricted to coherent-state generation. |
| format | Article |
| id | doaj-art-98949afd28ab4130a2daccbf7aabd808 |
| institution | OA Journals |
| issn | 2643-1564 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-98949afd28ab4130a2daccbf7aabd8082025-08-20T02:07:03ZengAmerican Physical SocietyPhysical Review Research2643-15642024-11-016404321410.1103/PhysRevResearch.6.043214Quantum enhancement of spoofing detection with squeezed states of lightTomás P. EspinozaSebastian C. CarrascoJosé RoganJuan Alejandro ValdiviaVladimir S. MalinovskyWe employ quantum state discrimination theory to establish the ultimate limit for spoofing detection in electromagnetic signals encoded with random quantum states. Our analysis yields an analytical expression for the optimal bound, which we prove can be achieved using a pair of coherent states. Notably, the quantum enhancement persists regardless of photon number, thereby removing the previous constraint to single-photon sources. This breakthrough unlocks new experimental possibilities using standard laser sources. Furthermore, we explore the encoding of squeezed states and demonstrate that the detection probability approaches 100% when the spoofer's capability is restricted to coherent-state generation.http://doi.org/10.1103/PhysRevResearch.6.043214 |
| spellingShingle | Tomás P. Espinoza Sebastian C. Carrasco José Rogan Juan Alejandro Valdivia Vladimir S. Malinovsky Quantum enhancement of spoofing detection with squeezed states of light Physical Review Research |
| title | Quantum enhancement of spoofing detection with squeezed states of light |
| title_full | Quantum enhancement of spoofing detection with squeezed states of light |
| title_fullStr | Quantum enhancement of spoofing detection with squeezed states of light |
| title_full_unstemmed | Quantum enhancement of spoofing detection with squeezed states of light |
| title_short | Quantum enhancement of spoofing detection with squeezed states of light |
| title_sort | quantum enhancement of spoofing detection with squeezed states of light |
| url | http://doi.org/10.1103/PhysRevResearch.6.043214 |
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