Mode-Invisibility as a non-Destructive Probe of Entangled QUBIT-CAT States
arXiv:1612.06878 · doi:10.1103/PhysRevA.96.033845
Abstract
We investigate the dynamics for a two level atomic system entangled to coherent states using the recently developed mode invisibility technique. Using a quantum 2-level probe, we demonstrate a way to non-destructively measure a number of properties between a qubit entangled with a generalized CAT state, including the amplitude of the coherent state, the location and relative excitation of the qubit, and the von Neumann entropy. Our results indicate a connection between this last quantity and the interferometric phase shift of the probe, thereby suggesting a possible way to experimentally measure entanglement non-destructively.
arXiv commentLatex 12 pages, 9 figures
References in corpus (12)
- Quantum entanglement
- Mixed State Entanglement and Quantum Error Correction
- Concentrating Partial Entanglement by Local Operations
- Entanglement Measures and Purification Procedures
- Bell Inequalities and the Separability Criterion
- Optimization of entanglement witnesses
- Open-System Dynamics of Entanglement
- Using Berry's phase to detect the Unruh effect at lower accelerations
- Multipartite entanglement detection in bosons
- Berry Phase Quantum Thermometer
- Mode Invisibility and Single Photon Detection
- Mode invisibility as a quantum non-demolition measurement of coherent light