Quantum state engineering of light with continuous-wave optical parametric oscillators
arXiv:1407.0183 · doi:10.3791/51224
Abstract
The ability to engineer the quantum state of traveling optical fields is a central requirement for quantum information science and technology, including quantum communication, computing and metrology. In this video article, we describe the reliable generation of non-Gaussian states, including single-photon states and coherent state superpositions, using a conditional preparation method operated on the non-classical light emitted by optical parametric oscillators. Type-I and type-II phase-matched OPOs operated below threshold, i.e. single-mode or two-mode squeezed vacuum sources, are considered and common procedures, such as the required frequency filtering or the high-efficiency quantum state characterization by homodyning, are detailed. The reported method enables a high fidelity with the targeted state and the generation of the state in a well-controlled spatiotemporal mode, a crucial feature for their use in subsequent protocols.
Written in JoVE style. Video available on chistera-qscale.eu/jove.html
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- Demonstration of Einstein-Podolsky-Rosen Steering Using Hybrid Continuous- and Discrete-Variable Entanglement of Light
- High-efficiency WSi superconducting nanowire single-photon detectors for quantum state engineering in the near infrared
- Engineering optical hybrid entanglement between discrete- and continuous-variable states
- Generation of time-frequency grid state with integrated biphoton frequency combs
- Microcontroller-based locking in optics experiments
- Experimental Fock-State Bunching Capability of Non-Ideal Single-Photon States
- Witnessing single-photon entanglement with local homodyne measurements: analytical bounds and robustness to losses
- Experimental quantum state engineering with time-separated heraldings from a continuous-wave light source: a temporal-mode analysis