Distributed entanglement as a probe for the quantum structure of spacetime
Pieter Kok, Ulvi Yurtsever, Samuel L. Braunstein, Jonathan P. Dowling
Abstract
Simultaneity is a well-defined notion in special relativity once a Minkowski metric structure is fixed on the spacetime continuum (manifold) of events. In quantum gravity, however, the metric is not expected to be a fixed, classical structure, but a fluctuating quantum operator which may assume a coherent superposition of two classically-distinguishable values. A natural question to ask is what happens to the notion of simultaneity and synchronization when the metric is in a quantum superposition. Here we show that the resource of distributed entanglement of the same kind as used by Jozsa et al. [Phys. Rev. Lett. 85, 2010 (2000)] gives rise to an experimental probe that is sensitive to coherent quantum fluctuations in the spacetime metric.
Create a lesson
Related papers
Generative learning of time series with holographic quantum circuit sampling
Bingzhi Zhang, Matthew W. Lee, Tom Finke et al.
Entanglement detection in dynamical quantum systems
Xingjian Zhang, Jiayi Wu, Jue Xu et al.
Partial-coherence weak measurement of polarization qubits with a temporal pointer: theory and experiment
Shane P. Gervais, Lambert Giner
A complete classification of operator controllability for closed three-level quantum systems driven by a single control
Sergey Kuznetsov, Alexander Pechen
Entanglement generation from degeneracy breaking of superradiant Liouvillian steady states by local operations
Adam Burgess, Erik M. Gauger
Classical Communication Helps Single-Shot Quantum Compression
Omri Farber, Gilad Gour