Experimental temporal quantum steering
arXiv:1602.09133 · doi:10.1038/srep38076
Abstract
Temporal steering is a form of temporal correlation between the initial and final state of a quantum system. It is a temporal analogue of the famous Einstein-Podolsky-Rosen (spatial) steering. We demonstrate, by measuring the photon polarization, that temporal steering allows two parties to verify if they have been interacting with the same particle, even if they have no information about what happened with the particle in between the measurements. This is the first experimental study of temporal steering. We also performed experimental tests, based on the violation of temporal steering inequalities, of the security of two quantum key distribution protocols against individual attacks. Thus, these results can lead to applications for secure quantum communications and quantum engineering.
9 pages, 4 figures. Our article arXiv:1503.00612v3 was extended and split into arXiv:1503.00612v4 and this article
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- Quantifying Quantumness of Channels Without Entanglement
- Einstein-Podolsky-Rosen steering: Its geometric quantification and witness
- Temporal Steering in Four Dimensions with applications to coupled qubits and magnetoreception
- Spatio-Temporal Steering for Testing Nonclassical Correlations in Quantum Networks
- Steering-enhanced quantum metrology using superpositions of noisy phase shifts
- Improving the bidirectional steerability between two accelerated partners via filtering process
- Resonance-dominant optomechanical entanglement in open quantum systems
- Dynamics and recovery of genuine multipartite Einstein-Podolsky-Rosen steering and genuine multipartite nonlocality for a dissipative Dirac system via Unruh effect
- Measurement-device-independent and arbitrarily loss-tolerant verification of quantum steering
- Does conditional entropy squeezing indicate normalized entropic uncertainty relation steering?
- Quantum temporal steering in a dephasing channel with quantum criticality
- Quantum steering and quantum discord under noisy channels and entanglement swapping
- Measurement-device-independent verification of channel steering
- Quantum direct cause across the Cherenkov threshold in circuit QED
- Hidden nonmacrorealism: reviving the Leggett-Garg inequality with stochastic operations