Neutral atoms are entangled in hyperfine states via Rydberg blockade
Ions and neutral atoms held in electromagnetic traps are two of many candidates that may one day become the qubits in a quantum computer: Their hyperfine states could serve as the computer's ones and zeroes. Ions interact via long-range Coulomb forces, which can facilitate creation of the entangled states that are the prerequisite for quantum computation. But that same Coulomb interaction gives rise to collective motions that can disrupt a qubit array. Atoms aren't susceptible to such disruptions. But they're also more difficult to entangle.
- OSTI ID:
- 22038479
- Journal Information:
- Physics Today, Vol. 63, Issue 2; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9228
- Country of Publication:
- United States
- Language:
- English
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