Remote generation of Wigner-negativity through Einstein-Podolsky-Rosen steering
arXiv:1912.02778 · doi:10.1103/PhysRevLett.124.150501
Abstract
Negativity of the Wigner function is seen as a crucial resource for reaching a quantum computational advantage with continuous variable systems. However, these systems, while they allow for the deterministic generation of large entangle states, require an extra element such as photon subtraction to obtain such negativity. Photon subtraction is known to affect modes beyond the one where the photon is subtracted, an effect which is governed by the correlations of the state. In this manuscript, we build upon this effect to remotely prepare states with Wigner-negativity. More specifically, we show that photon subtraction can induce Wigner-negativity in a correlated mode if and only if that correlated mode can perform Einstein-Podolsky-Rosen steering in the mode of subtraction.
5 pages and 2 figures
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- Fast Generation of High-Fidelity Mechanical Non-Gaussian States via Additional Amplifier and Photon Subtraction
- Experimental photon addition and subtraction in multi-mode and entangled optical fields
- On Quantum Steering and Wigner Negativity
- Two-mode light states before and after delocalized single-photon addition
- Coupled three-mode squeezed vacuum: Gaussian steering and remote generation of Wigner negativity
- Steady-state tripartite non-Gaussian entanglement and steering in output field from intracavity triple-photon parametric downconversion
- Quantum entanglement in phase space
- Non-Gaussian two mode squeezed thermal states in continuous variable quantum teleportation
- Entanglement Cost for Steering Assemblages
- Sufficient Wigner Negativity Implies Genuine Multipartite Entanglement
- Non-Gaussian state teleportation with a nonlinear feedforward
- Sudden death and revival of Gaussian Einstein-Podolsky-Rosen steering in noisy channels