Entanglement of topological phase factors
arXiv:quant-ph/0502114 · doi:10.1088/1367-2630/7/1/050
Abstract
The topological phase factor induced on interfering electrons by external quantum electromagnetic fields has been studied. Two and three electron interference experiments inside distant cavities are considered and the influence of correlated photons on the phase factors is investigated. It is shown that the classical or quantum correlations of the irradiating photons are transferred to the topological phases. The effect is quantified in terms of Weyl functions for the density operators of the photons and illustrated with particular examples. The scheme employs the generalized phase factor as a mechanism for information transfer from the photons to the electric charges. In this sense, the scheme may be useful in the context of flying qubits (corresponding to the photons) and stationary qubits (electrons), and the conversion from one type to the other.
16 pages, 6 figures
References in corpus (12)
- Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
- Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
- Quantum State Transfer Between Matter and Light
- Arbitrary rotation and entanglement of flux SQUID qubits
- Ultrafast deterministic generation of entanglement in a time-dependent asymmetric two-qubit-cavity system
- Entanglement in Mesoscopic Structures: Role of Projection
- Quantum gates with topological phases
- External Time-Varying Fields and Electron Coherence
- Entanglement of distant electron interference experiments
- Correlations in interfering electrons irradiated by nonclassical microwaves
- Entangled Hanbury Brown Twiss effects with edge states
- Entangled quantum currents in distant mesoscopic Josephson junctions