Year: 2025
Type: article
Abstract: Coherently controlling the motion of single atoms in optical tweezers would enable new applications in quantum information science. To demonstrate this, we first prepared atoms in their motional ground state using a species-agnostic cooling mechanism that converts motional excitations into erasures, errors with a known location. This cooling mechanism fundamentally outperforms idealized traditional sideband cooling, which we experimentally demonstrated. By coherently manipulating the resultant pure motional state, we performed mid-circuit readout and mid-circuit erasure detection through local shelving into motional superposition states. We lastly entangled the motion of two atoms in separate tweezers and generated hyperentanglement by preparing a simultaneous Bell state of motional and optical qubits, unlocking a large class of quantum operations with neutral atoms.
Source: Science
Institutions: California Institute of Technology, Stanford University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, U.S. Department of Energy, California Institute of Technology, Defense Advanced Research Projects Agency, Office of Science, Multidisciplinary University Research Initiative, Institute for Quantum Information and Matter, California Institute of Technology, Army Research Office
Awards: G1264789558, G1797871914, G2403330605, G2958415499, QLCI-CI: NSF Quantum Leap Challenge Institute for Present and Future Quantum Computing, G4639932191, The Institute for Quantum Information and Matter: Advancing the Entanglement Frontier, G5884252700, G6671297155, CAREER:Quantum Many-Body Control with Alkaline-Earth Atom-Arrays, G961819192
OpenAlex ID: W4410650582