TY - JOUR
AU - Brian Lester
AU - Yiheng Lin
AU - Mark Brown
AU - Adam Kaufman
AU - Randall Ball
AU - Emanuel Knill
AU - Ana Maria Rey
AU - Cindy Regal
AB - We demonstrate the ability to extract a spin-entangled state of two neutral atoms via postselection based on a measurement of their spatial configuration. Typically, entangled states of neutral atoms are engineered via atom-atom interactions. In contrast, in our Letter, we use Hong-Ou-Mandel interference to postselect a spin-singlet state after overlapping two atoms in distinct spin states on an effective beam splitter. We verify the presence of entanglement and determine a bound on the postselected fidelity of a spin-singlet state of (0.62 ± 0.03). The experiment has direct analogy to creating polarization entanglement with single photons and hence demonstrates the potential to use protocols developed for photons to create complex quantum states with noninteracting atoms.
BT - Physical Review Letters
DA - 2018-05
DO - 10.1103/PhysRevLett.120.193602
N2 - We demonstrate the ability to extract a spin-entangled state of two neutral atoms via postselection based on a measurement of their spatial configuration. Typically, entangled states of neutral atoms are engineered via atom-atom interactions. In contrast, in our Letter, we use Hong-Ou-Mandel interference to postselect a spin-singlet state after overlapping two atoms in distinct spin states on an effective beam splitter. We verify the presence of entanglement and determine a bound on the postselected fidelity of a spin-singlet state of (0.62 ± 0.03). The experiment has direct analogy to creating polarization entanglement with single photons and hence demonstrates the potential to use protocols developed for photons to create complex quantum states with noninteracting atoms.
PY - 2018
EP - 193602
T2 - Physical Review Letters
TI - Measurement-Based Entanglement of Noninteracting Bosonic Atoms
UR - https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.193602
VL - 120
SN - 0031-9007
ER -