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SUMMARY:Marta Maria Marchese (University of Siegen)
DTSTART:20241029T080000Z
DTEND:20241029T100000Z
DTSTAMP:20260417T072617Z
UID:3cqfs/31
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/3cqfs/31/">C
 oherently Averaged Optmechanical Sensing</a>\nby Marta Maria Marchese (Uni
 versity of Siegen) as part of Tricontinental Quantum Fundamentals Seminar\
 n\n\nAbstract\nCoherent averaging schemes have been introduced as a method
  to achieve the Heisenberg limit in parameter estimation. Typically\, thes
 e schemes involve multiple probes in a product state interacting with a qu
 antum bus\, with parameter estimation performed via measurements on the bu
 s. We propose a novel coherent averaging scheme for force sensing using an
  array of optomechanical detectors. Our setup consists of $N$ optomechanic
 al cavities\, unidirectionally coupled via an input laser pulse in the str
 oboscopic regime. The goal is to detect some weak unknown force that coupl
 es with all the mechanical elements within the cavities. Before being read
  out\, the pulse sequentially passes through all the cavities\, accumulati
 ng phase shifts\, which encode information about the force. Potential appl
 ications of this approach include the sensing of gravitational fields at t
 he Large Hadron Collider (LHC)\, the detection of dark matter signatures\,
  and the measurement of effects predicted by potential collapse models.\n
LOCATION:https://researchseminars.org/talk/3cqfs/31/
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