Homodyne detection of non-Gaussian quantum steering
arXiv:2201.11439 · doi:10.1103/PRXQuantum.3.030347
Abstract
Quantum correlations are at the core of current developments in quantum technologies. Certification protocols of entanglement and steering, suitable for continuous-variable non-Gaussian states are scarce and generally highly demanding from an experimental point of view. We propose a protocol based on Fisher information for witnessing steering in general continuous-variable bipartite states, through homodyne detection. It proves to be relevant for the detection of non-Gaussian steering in scenarios where witnesses based on Gaussian features like the covariance matrix are shown to fail.
arXiv comment14 pages, 14 figures, comments are welcome!
References in corpus (47)
- Quantum entanglement
- Advances in Quantum Metrology
- Gaussian Quantum Information
- Bell nonlocality
- Device-independent security of quantum cryptography against collective attacks
- Quantum metrology with nonclassical states of atomic ensembles
- Steering, Entanglement, Nonlocality, and the EPR Paradox
- Entanglement, Non-linear Dynamics, and the Heisenberg Limit
- Quantum metrology from a quantum information science perspective
- One-sided Device-Independent Quantum Key Distribution: Security, feasibility, and the connection with steering
- The Einstein-Podolsky-Rosen paradox: from concepts to applications
- Experimental criteria for steering and the Einstein-Podolsky-Rosen paradox
- On the impossibility of distilling Gaussian states with Gaussian operations
- Quantum Steering
- Einstein-Podolsky-Rosen steering provides the advantage in entanglement-assisted subchannel discrimination with one-way measurements
- Positive Wigner functions render classical simulation of quantum computation efficient
- Fisher Information and entanglement of non-Gaussian spin states
- Quantification of Gaussian quantum steering
- Increasing entanglement between Gaussian states by coherent photon subtraction
- Quantum Nonlocality in Phase Space
- A No-Go Theorem for Gaussian Quantum Error Correction
- Non-Gaussian entanglement distillation for continuous variables
- Modes and states in Quantum Optics
- Implementation of Continuous-Variable Quantum Key Distribution with Composable and One-Sided-Device-Independent Security Against Coherent Attacks
- Non-Gaussian Quantum States and Where to Find Them
- Experimental demonstration of Gaussian protocols for one-sided device-independent quantum key distribution
- Non-Gaussian quantum states of a multimode light field
- The resource theory of steering
- Quantum randomness extraction for various levels of characterization of the devices
- Hierarchy of Steering Criteria Based on Moments for All Bipartite Quantum Systems
- Optimal randomness certification in the quantum steering and prepare-and-measure scenarios
- Entanglement and Wigner function negativity of multimode non-Gaussian states
- Metrological Nonlinear Squeezing Parameter
- Schur complement inequalities for covariance matrices and monogamy of quantum correlations
- Metrological complementarity reveals the Einstein-Podolsky-Rosen paradox
- Precision measurements with photon-subtracted or photon-added Gaussian states
- Efficient entanglement criteria for discrete, continuous, and hybrid variables
- Demonstration of Einstein-Podolsky-Rosen Steering Using Hybrid Continuous- and Discrete-Variable Entanglement of Light
- Certification of non-Gaussian states with operational measurements
- Einstein-Podolsky-Rosen-steering using quantum correlations in non-Gaussian entangled states
- Statistical signatures of multimode single-photon added and subtracted states of light
- Conditional non-Gaussian quantum state preparation
- Tomographic test of Bell's inequality for a time-delocalized single photon
- Investigating Einstein-Podolsky-Rosen steering of continuous variable bipartite states by non-Gaussian pseudospin measurements
- From log-determinant inequalities to Gaussian entanglement via recoverability theory
- Quantification of Wigner Negativity Remotely Generated via Einstein-Podolsky-Rosen Steering
- Mode-Dependent Loss Model for Multimode Photon-Subtracted States