Models of exotic interferometer cross-correlations in emergent space-time

Hogan, Craig J.; Kwon, Ohkyung

doi:10.1088/1361-6382/aadea4

Cited by 3 publications

(7 citation statements)

References 53 publications

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“…Unlike the particle example, geometrical states are universal: they must entangle with all forms of matter and energy on a light cone in all directions, not just a single pair of particles. Their correlations describe the relationship of the local inertial frame of a world line to the rest of the universe [13][14][15].…”

Section: Physical Effects Of Exotic Correlationsmentioning

confidence: 99%

“…5, and refs. [13][14][15]). Projections of states are directionally antisymmetric on each light cone, like the rotational raising and lower operators δi± , as discussed in the Appendix.…”

Section: Semiclassical Visualization As Light Cone Fluctuationsmentioning

confidence: 99%

“…Causal relationship of entangled light cones for two world lines A and B in flat space-time, adapted from ref. [15]. Eigenvalues for these light cones of the relational antisymmetric phase displacement operators (Eq.…”

Section: Appendix Correlations Of Emergent Proper Time Between Separa...mentioning

confidence: 99%

“…Their nonlocal, multidirectional correlations can have measurable physical effects on the phases of relic perturbations. Specific properties of spooky correlations are estimated here by adapting covariant models of locality, emergence, and entanglement previously developed to design and interpret laboratory experiments [13][14][15], based on Planck scale quantum states with nonlocal correlations that extend everywhere on light cones or spacelike causal diamond surfaces. The relic curvature perturbations are estimated to exceed the standard, inflaton-generated perturbations by a significant factor.…”

Section: Introductionmentioning

confidence: 99%

“…Causal relationship of entangled light cones for two world lines A and B in flat space-time, adapted from ref [15]…”

mentioning

confidence: 99%

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Nonlocal entanglement and directional correlations of primordial perturbations on the inflationary horizon

Hogan

2019

Phys. Rev. D

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Models are developed to estimate properties of relic cosmic perturbations with "spooky" nonlocal correlations on the inflationary horizon, analogous to those previously posited for information on black hole event horizons. Scalar curvature perturbations are estimated to emerge with a dimensionless power spectral density ∆ 2 S ≈ HtP , the product of inflationary expansion rate H with Planck time tP , larger than standard inflaton fluctuations. Current measurements of the spectrum are used to derive constraints on parameters of the effective potential in a slow-roll background. It is shown that spooky nonlocality can create statistically homogeneous and isotropic primordial curvature perturbations that are initially directionally antisymmetric. New statistical estimators are developed to study unique signatures in CMB anisotropy and large scale galaxy surveys.

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Section: Physical Effects Of Exotic Correlationsmentioning

confidence: 99%

“…5, and refs. [13][14][15]). Projections of states are directionally antisymmetric on each light cone, like the rotational raising and lower operators δi± , as discussed in the Appendix.…”

Section: Semiclassical Visualization As Light Cone Fluctuationsmentioning

confidence: 99%

Section: Appendix Correlations Of Emergent Proper Time Between Separa...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Causal relationship of entangled light cones for two world lines A and B in flat space-time, adapted from ref [15]…”

mentioning

confidence: 99%

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Nonlocal entanglement and directional correlations of primordial perturbations on the inflationary horizon

Hogan

2019

Phys. Rev. D

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Twin beam quantum-enhanced correlated interferometry for testing fundamental physics

et al. 2020

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Quantum metrology deals with improving the resolution of instruments that are otherwise limited by shot noise and it is therefore a promising avenue for enabling scientific breakthroughs. The advantage can be even more striking when quantum enhancement is combined with correlation techniques among several devices. Here, we present and realize a correlation interferometry scheme exploiting bipartite quantum correlated states injected in two independent interferometers. The scheme outperforms classical analogues in detecting a faint signal that may be correlated/uncorrelated between the two devices. We also compare its sensitivity with that obtained for a pair of two independent squeezed modes, each addressed to one interferometer, for detecting a correlated stochastic signal in the MHz frequency band. Being the simpler solution, it may eventually find application to fundamental physics tests, e.g., searching for the effects predicted by some Planck scale theories.

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A quantum Interferometer for quantum gravity studies

Losero

Tekuru

Traina

et al. 2019

Quantum Communications and Quantum Imaging XVII

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The search for Planck scale effects is one of holy grains of physics. At Fermilab, a system of two Michelson interferometers (MIs) was built for this purpose: the holometer. This device operates using classical light, and, therefore, its sensitivity is shot-noise limited. In collaboration with the Danish Technical University, we built a proof of principle experiment devoted to experimentally demonstrate how quantum light could improve the holometer sensitivity below the shot noise limit.It is the first time that quantum light is used in a correlated interferometric system. In particular the injection of two single mode squeezed state (one in each interferometer) and of a twin-beam state is considered, and the system performance compared in the two cases. In this proceeding, after a general introduction to the holometer purposes and to our experimental set-up, we present some characterization measurements concerning the quantum light injection.

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Models of exotic interferometer cross-correlations in emergent space-time

Cited by 3 publications

References 53 publications

Nonlocal entanglement and directional correlations of primordial perturbations on the inflationary horizon

Nonlocal entanglement and directional correlations of primordial perturbations on the inflationary horizon

Twin beam quantum-enhanced correlated interferometry for testing fundamental physics

A quantum Interferometer for quantum gravity studies

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