Abstract
The search for Planck scale scale effect is one of holy grails of physics. In Fermilab a double Michelson interferometer was built for this purpose: the holometer. In this proceedings we review our effort to build a quantum enhanced holometer.
Highlights
The search for Planck scale scale effect is one of holy grails of physics
In Fermilab a double Michelson interferometer was built for this purpose: the holometer
In this proceedings we review our effort to build a quantum enhanced holometer
Summary
The search for Planck scale scale effect is one of holy grails of physics. In Fermilab a double Michelson interferometer was built for this purpose: the holometer [1]. We study in detail a system of two power-recycling Michelson interferometers aimed at detecting extremely faint phase fluctuations. This system can represent a breakthrough for detecting a faint correlated signal that would remain otherwise undetectable even using the most sensitive individual interferometric devices. Injecting quantum light in the system through the antisymmetric port of each interferometer can further reduce the uncertainty in the measurement of phase correlation. The quantum state |Ψ (it can be the product of two independent squeezed states or a two-modes twin-beam state) is injected from the antisymmetric ports a1 and a2 of the interferometers. It can be demonstrated that in ideal situations when losses are zero the uncertainty on the covariance is U (0)(δφ1δφ2) ∝ e−r1e−r2, being r1 and r2 the two squeezing factors [2, 3]
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