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SUMMARY:Topical Seminar: Testing quantum mechanics with 16-microgram Schr
 ödinger cat states
DTSTART;VALUE=DATE-TIME:20230519T100000Z
DTEND;VALUE=DATE-TIME:20230519T110000Z
DTSTAMP;VALUE=DATE-TIME:20260429T110054Z
UID:indico-event-7063@indico.ific.uv.es
DESCRIPTION:Testing quantum mechanics with 16-microgram Schrödinger cat s
 tates\n\nDr. Matteo Fadel\, ETH Zurich\n\nThe superposition principle is o
 ne of the most fundamental principles of quantum mechanics. According to t
 he Schrödinger equation\, a physical system can be in any linear combinat
 ion of its possible states. Although the validity of this principle is rou
 tinely confirmed for microscopic systems\, it remains unclear why macrosco
 pic objects are not observed to be in superpositions of distinguishable st
 ates. Our experiments demonstrate the preparation of a mechanical resonato
 r with an effective mass of 16 micrograms in nonclassical states of motion
 \, such as Fock states and Schrödinger cat states. Furthermore\, we inves
 tigate the decoherence dynamics of these states by observing the disappear
 ance of Wigner negativities\, which allows us to derive constraints on pos
 sible modifications to the Schrödinger equation. Our results have potenti
 al applications in continuous variable quantum information processing\, qu
 antum sensing\, and in the fundamental investigation of quantum mechanics 
 on massive systems.\n\nReferences:\n\n”Macroscopic Quantum Test with Bul
 k Acoustic Wave Resonators”\nBjörn Schrinski\, Yu Yang\, Uwe von Lüpke
 \, Marius Bild\, Yiwen Chu\, Klaus Hornberger\, Stefan Nimmrichter\, and M
 atteo Fadel\nPhys. Rev. Lett. 130\, 133604 (2023)\n\n“Schrödinger cat s
 tates of a 16-microgram mechanical oscillator”\nMarius Bild\, Matteo Fad
 el\, Yu Yang\, Uwe von Lüpke\, Phillip Martin\, Alessandro Bruno\, and Yi
 wen Chu\nScience 380\, 274 (2023)\n\nhttps://indico.ific.uv.es/event/7063/
LOCATION:Campus Burjassot 4-4-4426 - Seminari Física Teòrica
URL:https://indico.ific.uv.es/event/7063/
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