Large-scale entanglement via spin-exchange in a cryogenic ytterbium tweezer array
Abstract
Quantum computation and simulation face many obstacles on the path towards widespread adoption and commercial use. Most cold atom systems for universal quantum computing are currently based on Rydberg gates or perform quantum simulation of specific Hamiltonians. Here, we aim at characterizing an alternative platform based on spin-exchange interactions which offers the prospect of preparing large-scale entangled states. One very promising platform for this approach are nuclear-spin qubits in alkaline-earth-like atomic arrays in cryogenic environments due to very long coherence times. The lower temperature leads to several orders of magnitude improvement in vacuum lifetimes overcoming one of the major limits in current tweezer experiments. By employing a magic wavelength and a tuneout wavelength tweezer array we will realize spin-exchange-based entanglement gates and prepare cluster states that act as resource for the precision measurements and computation. The system is also promising for realizing quantum error correction, and mid-circuit readout will be implemented by exploiting the rich atomic structure of ytterbium. The spin-exchange based approach to quantum computing in tweezer arrays has many advantages, including the possibility of massively parallelized entanglement operations and reduced sensitivity to the environment.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 29, 2024
- Source ID
- FA95502310166
Entities
People
- Peter Schauss
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Virginia