Idler-free channel position finding
arXiv:2010.10547 · doi:10.1103/PhysRevA.103.042614
Abstract
Entanglement is a powerful tool for quantum sensing, and entangled states can greatly boost the discriminative power of protocols for quantum illumination, quantum metrology, or quantum reading. However, entangled state protocols generally require the retention of an idler state, to which the probes are entangled. Storing a quantum state is difficult and so technological limitations can make protocols requiring quantum memories impracticable. One alternative is idler-free protocols that utilise non-classical sources but do not require any idler states to be stored. Here we apply such a protocol to the task of channel position finding. This involves finding a target channel in a sequence of background channels, and has many applications, including quantum sensing, quantum spectroscopy, and quantum reading.
arXiv comment13 pages, 8 figures. Similar to published version
References in corpus (20)
- Quantum metrology from a quantum information science perspective
- Advances in Photonic Quantum Sensing
- Quantum Illumination with Gaussian States
- Reversing quantum dynamics with near-optimal quantum and classical fidelity
- Efficient quantum memory for single photon polarization qubits
- Quantum fidelity for arbitrary Gaussian states
- Relations between coherence and path information
- Highly efficient optical quantum memory with long coherence time in cold atoms
- Quantum Reading of a Classical Digital Memory
- Strong Converse to the Quantum Channel Coding Theorem
- Highly-Efficient Quantum Memory for Polarization Qubits in a Spatially-Multiplexed Cold Atomic Ensemble
- Unitarily localizable entanglement of Gaussian states
- Ultimate Precision of Adaptive Noise Estimation
- Fundamental limits of quantum illumination
- Quantum Illumination with a generic Gaussian source
- Ultimate limits for multiple quantum channel discrimination
- Entanglement-Assisted Absorption Spectroscopy
- On the distinguishability of random quantum states
- Entanglement-enhanced testing of multiple quantum hypotheses
- A lower bound on the probability of error in quantum state discrimination
Cited by in corpus (9)
- Optimal quantum strategy for locating Unruh channels
- Quantum limits of covert target detection
- Identification of malfunctioning quantum devices
- Analytical Bounds for Dynamic Multi-Channel Discrimination
- Idler-Free Multi-Channel Discrimination via Multipartite Probe States
- Quantum channel position finding using single photons
- Quantum-enhanced cluster detection in physical images
- Symplectic decomposition from submatrix determinants
- Bounding the benefit of adaptivity in quantum metrology using the relative fidelity