Quantum readout of imperfect classical data
arXiv:2202.01190 · doi:10.3390/s22062266
Abstract
The encoding of classical data in a physical support can be done up to some level of accuracy due to errors and the imperfection of the writing process. Moreover, some degradation of the storage data can happen over the time because of physical or chemical instability of the system. Any read-out strategy should take into account this natural degree of uncertainty and minimize its effect. An example are optical digital memories, where the information is encoded in two values of reflectance of a collection of cells. Quantum reading using entanglement, has been shown to enhances the readout of an ideal optical memory, where the two level are perfectly characterized. In this work, we will analyse the case of imperfect construction of the memory and propose an optimized quantum sensing protocol to maximize the readout accuracy in presence of imprecise writing. The proposed strategy is feasible with current technology and is relatively robust to detection and optical losses. Beside optical memories, this work have implications for identification of pattern in biological system, in spectrophotometry, and whenever the information can be extracted from a transmission/reflection optical measurement.
References in corpus (38)
- Advances in Quantum Metrology
- Quantum information with continuous variables
- Gaussian Quantum Information
- Quantum-enhanced measurements: beating the standard quantum limit
- Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light
- Advances in Photonic Quantum Sensing
- Experimental realization of sub-shot-noise quantum imaging
- Quantum Illumination with Gaussian States
- Squeezed states of light and their applications in laser interferometers
- Experimental realisation of quantum illumination
- Real applications of quantum imaging
- Optimal quantum estimation of loss in bosonic channels
- Quantum Reading of a Classical Digital Memory
- Optimal estimation of losses at the ultimate quantum limit with non-Gaussian states
- Imaging Through Noise With Quantum Illumination
- Sub-shot-noise photon-number correlation in mesoscopic twin-beam of light
- Photon number correlation for quantum enhanced imaging and sensing
- Fundamental limits to quantum channel discrimination
- Quantum imaging with sub-Poissonian light: challenges and perspectives in optical metrology
- Quantum State Separation, Unambiguous Discrimination and Exact Cloning
- Discriminating quantum-optical beam-splitter channels with number-diagonal signal states: Applications to quantum reading and target detection
- Multidimensional quantum-enhanced target detection via spectro-temporal correlation measurements
- Quantum Reading Capacity
- Testing Quantum Gravity by Quantum Light
- Absolute calibration of an EMCCD camera by quantum correlation linking photon counting to analog regime
- Unbiased estimation of an optical loss at the ultimate quantum limit with twin-beams
- Ultimate limits for multiple quantum channel discrimination
- Entanglement-Assisted Absorption Spectroscopy
- Entanglement-enhanced testing of multiple quantum hypotheses
- Deterministic phase measurements exhibiting super-sensitivity and super-resolution
- Experimental implementation of unambiguous quantum reading
- Experimental quantum reading with photon counting
- Explicit capacity-achieving receivers for optical communication and quantum reading
- Twin beam quantum-enhanced correlated interferometry for testing fundamental physics
- Quantum Enhanced Imaging of Non-Uniform Refractive Profiles
- Entropy production in Gaussian bosonic transformations using the replica method: application to quantum optics
- Classical capacities of memoryless but not identical quantum channels
- Error Probability Mitigation in Quantum Reading using Classical Codes