Quantum state transfer through time reversal of an optical channel
arXiv:1603.05327 · doi:10.1103/PhysRevA.94.062302
Abstract
Rare earth ions have exceptionally long coherence times, making them an excellent candidate for quantum information processing. A key part of this processing is quantum state transfer. We show that perfect state transfer can be achieved by time reversing the intermediate quantum channel, and suggest using a gradient echo memory (GEM) to perform this time reversal. We propose an experiment with rare earth ions to verify these predictions, where an emitter and receiver crystal are connected with an optical channel passed through a GEM. We investigate the affect experimental imperfections and collective dynamics have on the state transfer process. We demonstrate superrandiant effects can enhance coupling into the optical channel and improve the transfer fidelity. We lastly discuss how our results apply to state transfer of entangled states.
14 pages, 7 figures
References in corpus (16)
- The NumPy array: a structure for efficient numerical computation
- The Quantum Internet
- QuTiP 2: A Python framework for the dynamics of open quantum systems
- An Elementary Quantum Network of Single Atoms in Optical Cavities
- Coherent quantum state storage and transfer between two phase qubits via a resonant cavity
- Coherent quantum LQG control
- Reversible state transfer between light and a single trapped atom
- Multiatom and resonant interaction scheme for quantum state transfer and logical gates between two remote cavities via an optical fiber
- XMDS2: Fast, scalable simulation of coupled stochastic partial differential equations
- Anisotropic rare-earth spin ensemble strongly coupled to a superconducting resonator
- Coherent properties of single rare-earth spin qubits
- Reversible state transfer between superconducting qubits and atomic ensembles
- Scalable designs for quantum computing with rare-earth-ion-doped crystals
- Ultra-narrow optical inhomogeneous linewidth in a stoichiometric rare earth crystal
- Mesoscopic one-way channels for quantum state transfer via the Quantum Hall Effect
- Quantum state transfer for multi-input linear quantum systems