Details
| Original language | English |
|---|---|
| Article number | 260403 |
| Journal | Physical Review Letters |
| Volume | 123 |
| Issue number | 26 |
| Early online date | 27 Dec 2019 |
| Publication status | Published - 31 Dec 2019 |
Abstract
Macroscopic superposition states enable fundamental tests of quantum mechanics and hold a huge potential in metrology, sensing, and other quantum technologies. We propose to generate macroscopic superposition states of a large number of atoms in the ground state of a spin-1 Bose-Einstein condensate. Measuring the number of particles in one mode prepares with large probability highly entangled macroscopic superposition states in the two remaining modes. The macroscopic superposition states are heralded by the measurement outcome. Our protocol is robust under realistic conditions in current experiments, including finite adiabaticity, particle loss, and measurement uncertainty.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical Review Letters, Vol. 123, No. 26, 260403, 31.12.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Heralded Generation of Macroscopic Superposition States in a Spinor Bose-Einstein Condensate
AU - Pezzè, L.
AU - Gessner, M.
AU - Feldmann, P.
AU - Klempt, C.
AU - Santos, L.
AU - Smerzi, A.
PY - 2019/12/31
Y1 - 2019/12/31
N2 - Macroscopic superposition states enable fundamental tests of quantum mechanics and hold a huge potential in metrology, sensing, and other quantum technologies. We propose to generate macroscopic superposition states of a large number of atoms in the ground state of a spin-1 Bose-Einstein condensate. Measuring the number of particles in one mode prepares with large probability highly entangled macroscopic superposition states in the two remaining modes. The macroscopic superposition states are heralded by the measurement outcome. Our protocol is robust under realistic conditions in current experiments, including finite adiabaticity, particle loss, and measurement uncertainty.
AB - Macroscopic superposition states enable fundamental tests of quantum mechanics and hold a huge potential in metrology, sensing, and other quantum technologies. We propose to generate macroscopic superposition states of a large number of atoms in the ground state of a spin-1 Bose-Einstein condensate. Measuring the number of particles in one mode prepares with large probability highly entangled macroscopic superposition states in the two remaining modes. The macroscopic superposition states are heralded by the measurement outcome. Our protocol is robust under realistic conditions in current experiments, including finite adiabaticity, particle loss, and measurement uncertainty.
UR - http://www.scopus.com/inward/record.url?scp=85077312923&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1712.03864
DO - 10.48550/arXiv.1712.03864
M3 - Article
VL - 123
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 26
M1 - 260403
ER -