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Asymmetric Blockade and Multiqubit Gates via Dipole-Dipole Interactions

Journal Article · · Physical Review Letters
 [1];  [2];  [2];  [3];  [2]
  1. JILA, Boulder, CO (United States); Univ. of Colorado, Boulder, CO (United States); National Inst. of Standards and Technology (NIST), Boulder, CO (United States); Joint Quantum Institute, College Park, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States); OSTI
  2. Joint Center for Quantum Information and Computer Science, College Park, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States); Joint Center for Quantum Information and Computer Science, College Park, MD (United States)
  3. JILA, Boulder, CO (United States); Univ. of Colorado, Boulder, CO (United States); National Inst. of Standards and Technology (NIST), Boulder, CO (United States)

Because of 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 multiqubit Rydberg-blockade gates that 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. Further, the implementation of these multiqubit gates can drastically simplify both quantum algorithms and state preparation. To illustrate this, we show that a 25-atom Greenberger-Horne-Zeilinger state can be created using only three gates with an error of 5.8%.

Research Organization:
Univ. of Maryland, College Park, MD (United States); Duke Univ., Durham, NC (United States)
Sponsoring Organization:
US Air Force Office of Scientific Research (AFOSR); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); National Science Foundation (NSF); US Army Research Office (ARO); US Army Research Laboratory (USARL); National Institute of Standards and Technology (NIST); Natural Sciences and Engineering Research Council of Canada (NSERC); Fonds de recherche du Québec – Nature et technologies (FRQNT)
Grant/Contract Number:
SC0019040; SC0019449; SC0020312
OSTI ID:
1852784
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 12 Vol. 127; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (81)

Multibit C k NOT quantum gates via Rydberg blockade journal September 2011
Prospects for fast Rydberg gates on an atom chip journal September 2011
A simple formula for the average gate fidelity of a quantum dynamical operation journal October 2002
ARC: An open-source library for calculating properties of alkali Rydberg atoms journal November 2017
Room-temperature entanglement between single defect spins in diamond journal February 2013
Entangling atomic spins with a Rydberg-dressed spin-flip blockade journal October 2015
Three-body interactions with cold polar molecules journal July 2007
Anyonic interferometry and protected memories in atomic spin lattices journal April 2008
High-fidelity entanglement and detection of alkaline-earth Rydberg atoms journal May 2020
Submicrosecond entangling gate between trapped ions via Rydberg interaction journal April 2020
Dipolar exchange quantum logic gate with polar molecules journal January 2018
Efficient Grover search with Rydberg blockade journal September 2011
Simulated quantum process tomography of quantum gates with Rydberg superatoms journal May 2016
Calculation of Rydberg interaction potentials journal June 2017
Microwave control of Rydberg atom interactions journal December 2014
Quantum phase estimation of multiple eigenvalues for small-scale (noisy) experiments journal February 2019
Rydberg quantum controlled-phase gate with one control and multiple target qubits journal November 2018
Entanglement of neutral-atom qubits with long ground-Rydberg coherence times journal December 2018
Reliable quantum computers journal January 1998
Monitoring Quantum Simulators via Quantum Nondemolition Couplings to Atomic Clock Qubits journal October 2020
Single-step implementation of high-fidelity n -bit Toffoli gates journal February 2020
Optimized geometric quantum computation with a mesoscopic ensemble of Rydberg atoms journal October 2020
Elementary gates for quantum computation journal November 1995
Analysis of a quantum logic device based on dipole-dipole interactions of optically trapped Rydberg atoms journal August 2005
Schemes for robust quantum computation with polar molecules journal November 2006
Conditional dynamics induced by new configurations for Rydberg dipole-dipole interactions journal August 2007
Deterministic entanglement of two neutral atoms via Rydberg blockade journal September 2010
Implementation of a multiqubit quantum phase gate in a neutral atomic ensemble via the asymmetric Rydberg blockade journal September 2010
Quantum magnetism with polar alkali-metal dimers journal September 2011
Optimizing entangling quantum gates for physical systems journal October 2011
Analysis of a controlled phase gate using circular Rydberg states journal December 2013
Implementation of an experimentally feasible controlled-phase gate on two blockaded Rydberg atoms journal March 2014
Robustness of high-fidelity Rydberg gates with single-site addressability journal September 2014
Controlling the interactions of a few cold Rb Rydberg atoms by radio-frequency-assisted Förster resonances journal October 2014
Deterministic entanglement of Rydberg ensembles by engineered dissipation journal December 2014
Entanglement of neutral-atom chains by spin-exchange Rydberg interaction journal December 2014
Rydberg-blockade controlled-not gate and entanglement in a two-dimensional array of neutral-atom qubits journal August 2015
Population transfer and quantum entanglement implemented in cold atoms involving two Rydberg states via an adiabatic passage journal December 2015
Trap losses induced by near-resonant Rydberg dressing of cold atomic gases journal April 2016
Measuring the scrambling of quantum information journal October 2016
Single-atom single-photon coupling facilitated by atomic-ensemble dark-state mechanisms journal November 2016
Annulled van der Waals interaction and fast Rydberg quantum gates journal April 2017
Rydberg-interaction gates via adiabatic passage and phase control of driving fields journal August 2017
Spontaneous avalanche dephasing in large Rydberg ensembles journal November 2017
Reducing the sensitivity of Rydberg atoms to dc electric fields using two-frequency ac field dressing journal January 2018
Dissipation-induced dipole blockade and antiblockade in driven Rydberg systems journal February 2018
One-step construction of the multiple-qubit Rydberg controlled-phase gate journal September 2018
Dipolar quantum logic for freely rotating trapped molecular ions journal October 2018
Fast three-qubit Toffoli quantum gate based on three-body Förster resonances in Rydberg atoms journal October 2018
Deutsch, Toffoli, and cnot Gates via Rydberg Blockade of Neutral Atoms journal May 2018
Theory of electron spin decoherence by interacting nuclear spins in a quantum dot journal November 2006
Quantum Gates and Multiparticle Entanglement by Rydberg Excitation Blockade and Adiabatic Passage journal April 2008
Breaking the Dipole Blockade: Nearly Resonant Dipole Interactions in Few-Atom Systems journal January 2009
Mesoscopic Rydberg Gate Based on Electromagnetically Induced Transparency journal April 2009
Efficient Multiparticle Entanglement via Asymmetric Rydberg Blockade journal June 2009
Entanglement of Two Individual Neutral Atoms Using Rydberg Blockade journal January 2010
Demonstration of a Neutral Atom Controlled-NOT Quantum Gate journal January 2010
Electron-Mediated Nuclear-Spin Interactions between Distant Nitrogen-Vacancy Centers journal October 2011
Strongly Dipolar Bose-Einstein Condensate of Dysprosium journal October 2011
Bose-Einstein Condensation of Erbium journal May 2012
Binding Potentials and Interaction Gates between Microwave-Dressed Rydberg Atoms journal September 2014
Designing Frustrated Quantum Magnets with Laser-Dressed Rydberg Atoms journal April 2015
Anomalous Broadening in Driven Dissipative Rydberg Systems journal March 2016
Optical Control of the Resonant Dipole-Dipole Interaction between Rydberg Atoms journal August 2017
Entangling Two Individual Atoms of Different Isotopes via Rydberg Blockade journal October 2017
Fast Quantum State Transfer and Entanglement Renormalization Using Long-Range Interactions journal October 2017
High-Fidelity Control and Entanglement of Rydberg-Atom Qubits journal September 2018
Parallel Implementation of High-Fidelity Multiqubit Gates with Neutral Atoms journal October 2019
Nondestructive Cooling of an Atomic Quantum Register via State-Insensitive Rydberg Interactions journal November 2019
Rydberg-Mediated Entanglement in a Two-Dimensional Neutral Atom Qubit Array journal December 2019
Quantum Metrology with Indefinite Causal Order journal May 2020
Fast Quantum Gates for Neutral Atoms journal September 2000
Bose-Einstein Condensation of Chromium journal April 2005
Enhancement of Rydberg Atom Interactions Using ac Stark Shifts journal May 2007
Fast Multiqubit Gates by Adiabatic Evolution in Interacting Excited-State Manifolds of Rydberg Atoms and Superconducting Circuits journal June 2020
Hierarchy of Linear Light Cones with Long-Range Interactions journal July 2020
Quantum Spin-Ice and Dimer Models with Rydberg Atoms journal November 2014
Quantum information with Rydberg atoms journal August 2010
Fault-Tolerant Quantum Computation with Constant Error Rate journal January 2008
Characterization of how dissipation and dephasing errors accumulate in quantum computers journal January 2015
journal January 2005

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Quantum phase transitions of interacting bosons on hyperbolic lattices journal June 2021

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