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UID:69d0e321ccb15
DTSTART:20250728T100000Z
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20250728T110000Z
LOCATION:Seminar Room
SUMMARY:ICFO | DIEGO DALVIT
CLASS:PUBLIC
DESCRIPTION:Quantum sensing promises to revolutionize sensing applications 
 by employing quantum states of light or matter as sensing probes. Photons 
 are the clear choice as quantum probes for remote sensing because they can
  travel to and interact with a distant target. Existing schemes are mainly
  based on the quantum illumination framework\, which requires a quantum me
 mory to store a single photon of an initially entangled pair until its twi
 n reflects off a target and returns for final correlation measurements. Ex
 isting demonstrations are limited to tabletop experiments\, and expanding 
 the sensing range faces various roadblocks\, including long-time quantum s
 torage and photon loss and noise when transmitting quantum signals over lo
 ng distances. We propose a novel quantum sensing framework that addresses 
 these challenges using quantum frequency combs with path identity for remo
 te sensing of signatures (\"qCOMBPASS\"). The combination of one key quant
 um phenomenon and two quantum resources\, namely quantum induced coherence
  by path identity\, quantum frequency combs\, and two-mode squeezed light\
 , allows for quantum remote sensing without requiring a quantum memory. Th
 e proposed scheme is akin to a quantum radar based on entangled frequency 
 comb pairs that uses path identity to detect/range/sense a remote target o
 f interest by measuring pulses of one comb in the pair that never flew to 
 target\, but that contains target information \"teleported\" by quantum-in
 duced coherence from the other comb in the pair that did fly to target but
  is not detected. This work was recently published in D.A.R. Dalvit et.al.
 \, Quantum Frequency Combs with Path Identity for Quantum Remote Sensing\,
  PRX 14\, 041058 (2024).
DTSTAMP:20260404T100833Z
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