



@article {2594,
	title = {Asymmetric blockade and multi-qubit gates via dipole-dipole interactions},
	year = {2020},
	month = {6/3/2020},
	abstract = {<p>Due to their strong and tunable interactions, Rydberg atoms can be used to realize fast two-qubit entangling gates. We propose a generalization of a generic two-qubit Rydberg-blockade gate to multi-qubit Rydberg-blockade gates which involve both many control qubits and many target qubits simultaneously. This is achieved by using strong microwave fields to dress nearby Rydberg states, leading to asymmetric blockade in which control-target interactions are much stronger than control-control and target-target interactions. The implementation of these multi-qubit gates can drastically simplify both quantum algorithms and state preparation. To illustrate this, we show that a 25-atom GHZ state can be created using only three gates with an error of 7.8\%.</p>},
	url = {https://arxiv.org/abs/2006.02486},
	author = {Jeremy T. Young and Przemyslaw Bienias and Ron Belyansky and Adam M. Kaufman and Alexey V. Gorshkov}
}
@article {2460,
	title = {Nondestructive cooling of an atomic quantum register via state-insensitive Rydberg interactions},
	year = {2019},
	month = {7/28/2019},
	abstract = {<p>We propose a protocol for sympathetically cooling neutral atoms without destroying the quantum information stored in their internal states. This is achieved by designing state-insensitive Rydberg interactions between the data-carrying atoms and cold auxiliary atoms. The resulting interactions give rise to an effective phonon coupling, which leads to the transfer of heat from the data atoms to the auxiliary atoms, where the latter can be cooled by conventional methods. This can be used to extend the lifetime of quantum storage based on neutral atoms and can have applications for long quantum computations. The protocol can also be modified to realize state-insensitive interactions between the data and the auxiliary atoms but tunable and non-trivial interactions among the data atoms, allowing one to simultaneously cool and simulate a quantum spin-model.\&nbsp;</p>},
	url = {https://arxiv.org/abs/1907.11156},
	author = {Ron Belyansky and Jeremy T. Young and Przemyslaw Bienias and Zachary Eldredge and Adam M. Kaufman and Peter Zoller and Alexey V. Gorshkov}
}
