Quantum information with Rydberg atoms

By Mark Saffman, Thomas G. Walker, Klaus Mølmer. 2009

2,235 citations recorded by the source corpus.

Rydberg atoms with principal quantum number n >> 1 have exaggerated atomic properties including dipole-dipole interactions that scale as n^4 and radiative lifetimes that scale as n^3. It was proposed a decade ago to take advantage of these properties to implement quantum gates between neutral atom qubits. The availability of a strong, long-range interaction that can be coherently turned on and off is an enabling resource for a wide range of quantum information tasks stretching far beyond the original gate proposal. Rydberg enabled capabilities include long-range two-qubit gates, collective encoding of multi-qubit registers, implementation of robust light-atom quantum interfaces, and the potential for simulating quantum many body physics. We review the advances of the last decade, covering both theoretical and experimental aspects of Rydberg mediated quantum information processing.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/2983ae6d52e019b91c8f82009cae6b6dd085e99d

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Citations in the corpus

An open-system quantum simulator with trapped ions (2011, positive): “As a figure of merit of our entangling operation, we can prepare 3 (5) qubits in a GHZ state with 98% (95%) fidelity(37).”
Observation of coherent many-body Rabi oscillations (2012, background): “Figure 5(b) shows an oscillation with a similarly reduced visibility in measurements with the |100d3/2〉 level with τ = 1 μs excitation, which may be attributed to the blockade breakdown due to a strong angular dependence of the atomic interaction strengths for |nd〉-levels [13].”
Quantum computing with neutral atoms (2020, background): “In addition to large connectivity, neutral atom devices present the advantage of natively implementing multi-qubit gates involving more that 2 qubits [4, 5, 17, 23].”
Microscopic Control and Detection of Ultracold Strontium in Optical-Tweezer Arrays (2018, background): “On its own, this tweezer-based ground state cooling may be used to reduce motional dephasing effects present in Rydberg-based two-qubit gates [53, 54], and can aid new directions in metrology, such as tweezer-based optical atomic clocks.”
Quantum nonlinear optics with single photons enabled by strongly interacting atoms (2012, neutral): “τc is estimated using the single-atom EIT linewidths (γ EIT , γ 4 EIT , γ ◦ EIT , γ EIT ) = 2π× (6-16,18-26,29-36,50) MHz, and varies from 60 to 330 ns.”
Quantum metrology with nonclassical states of atomic ensembles (2016, neutral): “…(Bouchoule and Mølmer, 2002b; Henkel et al., 2010; Mohammadadegh et al., 2016; Opatrný an Mølmer, 2012; Pupillo et al., 2010) [see Browaeys et al. (2016) and Saffman et al. (2010) for reviews] t generate spi -squeezed (Gil et al., 2014) and non-Gaussian entangled states (Macr̀ı et al., 2016).”
Realizing the classical XY Hamiltonian in polariton simulators. (2016, neutral): “Defects and vacancies in semiconductors or dielectric materials [1, 2], magnetic impurities embedded in solid helium [3], atoms in optical lattices [4, 5], photons [6], trapped ions [7, 8] and superconducting q-bits [9] are among the candidates for predicting the behaviour of spin glasses, spin-liqu”
Colloquium: Strongly interacting photons in one-dimensional continuum (2016, background): “The blockade effect itself can be used for various quantum information processes with atoms (Müller et al., 2009; Saffman et al., 2010).”
Prediction of Toric Code Topological Order from Rydberg Blockade (2020, methodology): “Tunable atom interactions can be engineered in such systems using the Rydberg blockade mechanism [35–38], mediated by laser excitation of atoms into the Rydberg states [39, 40].”
Natural and artificial atoms for quantum computation (2010, background): “Furthermore, with polar molecules [17] or Rydberg atoms [28, 27, 36] dipole-dipole interactions could be exploited for realizing two-qubit gates.”
Tackling the Qubit Mapping Problem for NISQ-Era Quantum Devices (2018, methodology): “ Hardware in the NISQ Era There are several different candidate technologies to implement QC on hardware, including superconducting quantum circuit [39], ion trap [40], quantum dot [41], neutral atom [42], etc. We will use superconducting quantum circuits, which is currently the most promising techn”