TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.15.5.188
TI  - A quantum register using collective excitations in a Bose-Einstein condensate
PY  - 2023/11/08
UR  - https://scipost.org/SciPostPhys.15.5.188
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 15
IS  - 5
SP  - 188
A1  - Haber, Elisha
AU  - Chen, Zekai
AU  - Bigelow, Nicholas P.
AB  - A qubit made up of an ensemble of atoms is attractive due to its resistance to atom losses. In this work, we consider an experimentally feasible protocol to coherently load a spin-dependent optical lattice from a spatially overlapping Bose-Einstein condensate. Identifying each lattice site as a qubit, with an empty or filled site as the qubit basis, we discuss how high-fidelity single-qubit operations, two-qubit gates between arbitrary pairs of qubits, and nondestructive measurements could be performed. In this setup, the effect of atom losses has been mitigated, the atoms never need to be removed from the ground state manifold, and separate storage and computational bases for the qubits are not required, all of which can be significant sources of decoherence in many other types of atomic qubits.
ER  -

@Article{10.21468/SciPostPhys.15.5.188,
	title={{A quantum register using collective excitations in a Bose-Einstein condensate}},
	author={Elisha Haber and Zekai Chen and Nicholas P. Bigelow},
	journal={SciPost Phys.},
	volume={15},
	pages={188},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.15.5.188},
	url={https://scipost.org/10.21468/SciPostPhys.15.5.188},
}