Time domain Einstein-Podolsky-Rosen correlation

Abstract

We experimentally demonstrate creation and characterization of Einstein-Podolsky-Rosen (EPR) correlation between optical beams in the time domain. The correlated beams are created with two independent continuous-wave optical parametric oscillators and a half beam splitter. We define temporal modes using a square temporal filter with duration $T$ and make time-resolved measurement on the generated state. We observe the correlations between the relevant conjugate variables in time domain which correspond to the EPR correlation. Our scheme is extendable to continuous variable quantum teleportation of a non-Gaussian state defined in the time domain such as a Schrödinger cat-like state.

4 pages, 4 figures

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• Detecting faked continuous variable entanglement using one-sided device-independent entanglement witnesses
• Strong Einstein-Podolsky-Rosen entanglement from a single squeezed light source
• Continuous variable quantum key distribution based on optical entangled states without signal modulation
• Einstein-Podolsky-Rosen paradox in a hybrid bipartite system
• Certification of high-dimensional entanglement and Einstein-Podolsky-Rosen steering with cold atomic quantum memory
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• Anyonic statistics with continuous variables
• Towards an Einstein-Podolsky-Rosen paradox between two macroscopic atomic ensembles at room temperature
• Significance of Fidelity Deviation in Continuous Variable Teleportation
• Experimental Demonstration of Macroscopic Quantum Coherence in Gaussian States
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