Dipole blockade and quantum information processing in mesoscopic atomic ensembles.

By Mikhail D. Lukin, Michael Fleischhauer, R. Côté, Luming Duan, Dieter Jaksch, J. I. Cirac, Peter Zoller. Physical Review Letters, 2000

1,230 citations recorded by the source corpus.

We describe a technique for manipulating quantum information stored in collective states of mesoscopic ensembles. Quantum processing is accomplished by optical excitation into states with strong dipole-dipole interactions. The resulting "dipole blockade" can be used to inhibit transitions into all but singly excited collective states. This can be employed for a controlled generation of collective atomic spin states as well as nonclassical photonic states and for scalable quantum logic gates. An example involving a cold Rydberg gas is analyzed.

Subfields: Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/f2e9ee532f13e3644435c03673a617593f7be712

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Quantum information with Rydberg atoms (2009, background): “However, in a seminal paper by Lukin and collaborators(Lukin et al., 2001) it was shown that this can be directly extended to ensemble qubits, each consisting of N atoms.”
Colloquium: Trapping and manipulating photon states in atomic ensembles (2003, methodology): “This is the essence of the ‘‘dipole blockade’’ phenomenon (Lukin et al., 2001).”
Coherent excitation of Rydberg atoms in micrometre-sized atomic vapour cells (2010, neutral): “oms can lead to controlled entanglement of atomic ensembles, Rydberg atom blockade is the basis for several proposals to realize photonic quantum devices, like single photon sources and quantum gates [5, 6]. The ﬁrst promising experimental steps towardthis goalusingindividual welllocalizedpairsofult”
Cavity-based quantum networks with single atoms and optical photons (2014, background): “Here, proposals for long-distance communication (Duan et al., 2001) and quantum information processing based on dipole blockade (Lukin et al., 2001) exist and remarkable progress has been made (Hammerer et al., 2010; Sangouard et al., 2011).”
Quantum simulation and computing with Rydberg-interacting qubits (2020, background): “While gr-qubits are usually encoded using single atoms, they could also be realized using collective states of atomic ensembles conﬁned smaller than the blockade volume (collective qubits) 23,109,110 .”
Quantum nonlinear optics with single photons enabled by strongly interacting atoms (2012, background): “a, b, Equal-time photonphoton correlation g((2))(0) as a function of OD for |77S1/2〉 (a) and |100S1/2〉 (b), for a set of single-atom EIT linewidths (γ EIT , γ O EIT , γ 4 EIT , γ / EIT ) = 2π × (20, 27, 16, 26) MHz.”