Discrete outcome quantum sensor networks
arXiv:2210.17254 · doi:10.1103/PhysRevA.107.012435
Abstract
We model a quantum sensor network using techniques from quantum state discrimination. The interaction between a qubit detector and the environment is described by a unitary operator, and we will assume that at most one detector does interact. The task is to determine which one does or if none do. This involves choosing an initial state of the detectors and a measurement. We consider global measurements in which all detectors are measured simultaneously. We find that an entangled initial state can improve the detection probability, but this advantage decreases as the number of detectors increases.
arXiv commentReplaced with published version
References in corpus (19)
- Experimental Quantum State Tomography of Optical Fields and Ultrafast Statistical Sampling
- Unknown Quantum States and Operations, a Bayesian View
- Advances in Photonic Quantum Sensing
- Multi-parameter estimation in networked quantum sensors
- Distributed Quantum Sensing Using Continuous-Variable Multipartite Entanglement
- Distributed Quantum Metrology and the Entangling Power of Linear Networks
- Optimal discrimination of quantum operations
- Optimal and Secure Measurement Protocols for Quantum Sensor Networks
- Entanglement can enhance the distinguishability of entanglement-breaking channels
- Unambiguous discrimination among quantum operations
- Optimal estimation of quantum dynamics
- Heisenberg-Scaling Measurement Protocol for Analytic Functions with Quantum Sensor Networks
- Distributed quantum sensing enhanced by continuous-variable error correction
- Ultimate limits for multiple quantum channel discrimination
- Quantum sensing networks for the estimation of linear functions
- Entanglement-enhanced testing of multiple quantum hypotheses
- Improved discrimination of unitaries by entangled probes
- How well can you know the edge of a quantum pyramid?
- Optimal environment localization