Discrete single-photon quantum walks with tunable decoherence
arXiv:1002.4923 · doi:10.1103/PhysRevLett.104.153602
Abstract
Quantum walks have a host of applications, ranging from quantum computing to the simulation of biological systems. We present an intrinsically stable, deterministic implementation of discrete quantum walks with single photons in space. The number of optical elements required scales linearly with the number of steps. We measure walks with up to 6 steps and explore the quantum-to-classical transition by introducing tunable decoherence. Finally, we also investigate the effect of absorbing boundaries and show that decoherence significantly affects the probability of absorption.
Published version, 5 pages, 4 figures
References in corpus (8)
- Environment-Assisted Quantum Walks in Photosynthetic Energy Transfer
- Universal computation by quantum walk
- Environment-Assisted Quantum Transport
- Quantum Walk in Position Space with Single Optically Trapped Atoms
- A wavelength-tunable fiber-coupled source of narrowband entangled photons
- Decoherence in quantum walks - a review
- Quantum Walk on a Line with Two Entangled Particles
- Quantum Walks on a Random Environment
Cited by in corpus (12)
- Exploring Topological Phases With Quantum Walks
- Relationship Between Quantum Walk and Relativistic Quantum Mechanics
- Disordered quantum walk-induced localization of a Bose-Einstein condensate
- Implementation of one-dimensional quantum walks on spin-orbital angular momentum space of photons
- Parrondo's game using a discrete-time quantum walk
- Quantumness in decoherent quantum walk using measurement-induced disturbance
- Simulation of noise-assisted transport via optical cavity networks
- Survival probability in a one-dimensional quantum walk on a trapped lattice
- Asymptotic evolution of quantum walks on the -cycle subject to decoherence on both the coin and position degrees of freedom
- Zeno subspace in quantum-walk dynamics
- Searches on star graphs and equivalent oracle problems
- Localization and Fractality in Inhomogeneous Quantum Walks with Self-Duality