No-Go Theorem for a Quantum-Illumination Ranging
ORAL
Abstract
Quantum illumination promises high improvement in errors of target detection. However, currently it is uncertain if this improvement can be used for ranging applications. In this work, we use tools of quantum information theory to show that this improvement is impractical in time-of-flight (ToF) ranging.
More precisely, we calculate the error for symmetric and asymmetric error settings and compare the performance of two-mode squeezed vacuum states (quantum illumination) and coherent states (a laser). For symmetric error setting the coherent state error is slightly lower than this of quantum illumination. For asymmetric error setting, the unstable phase of ToF changes the scaling of the information loss from one over the transmission to one over the transmission square, significantly limiting the maximal detected range.
More precisely, we calculate the error for symmetric and asymmetric error settings and compare the performance of two-mode squeezed vacuum states (quantum illumination) and coherent states (a laser). For symmetric error setting the coherent state error is slightly lower than this of quantum illumination. For asymmetric error setting, the unstable phase of ToF changes the scaling of the information loss from one over the transmission to one over the transmission square, significantly limiting the maximal detected range.
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Presenters
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Lior Cohen
University of Colorado Boulder, Department of Electrical, Computer, and Energy Engineering, University of Colorado Boulder
Authors
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Lior Cohen
University of Colorado Boulder, Department of Electrical, Computer, and Energy Engineering, University of Colorado Boulder