Neutral-Atom & Trapped-Ion Quantum Computing
Rydberg atom arrays, reconfigurable logical processors, QCCD trapped-ion architectures, high-fidelity gates and mid-circuit measurement.
Most influential
- High-fidelity parallel entangling gates on a neutral-atom quantum computer
The ability to perform entangling quantum operations with low error rates in a scalable fashion is a central element of useful quantum information processing. Neutral atom arrays have recently emerged as a promising quantum computing platform, featuring coherent control over hundreds of qubits and any-to-any gate connectivity in a flexible, dynamically recon…
Article521 citationsarXiv:2304.05420doi:10.1038/s41586-023-06481-y - Quantum computing with atomic qubits and Rydberg interactions: progress and challenges
We present a review of quantum computation with neutral atom qubits. After an overview of architectural options and approaches to preparing large qubit arrays we examine Rydberg mediated gate protocols and fidelity for two- and multi-qubit interactions. Quantum simulation and Rydberg dressing are alternatives to circuit based quantum computing for exploring …
Article698 citationsarXiv:1605.05207doi:10.1088/0953-4075/49/20/202001 - High-fidelity gates and mid-circuit erasure conversion in an atomic qubit
The development of scalable, high-fidelity qubits is a key challenge in quantum information science. Neutral atom qubits have progressed rapidly in recent years, demonstrating programmable processors and quantum simulators with scaling to hundreds of atoms. Exploring new atomic species, such as alkaline earth atoms, or combining multiple species can provide …
Article228 citationsarXiv:2305.05493doi:10.1038/s41586-023-06438-1 - Erasure conversion for fault-tolerant quantum computing in alkaline earth Rydberg atom arrays
Executing quantum algorithms on error-corrected logical qubits is a critical step for scalable quantum computing, but the requisite numbers of qubits and physical error rates are demanding for current experimental hardware. Recently, the development of error correcting codes tailored to particular physical noise models has helped relax these requirements. In…
Article197 citationsarXiv:2201.03540doi:10.1038/s41467-022-32094-6 - Cooling a single atom in an optical tweezer to its quantum ground state
We report cooling of a single neutral atom to its three-dimensional vibrational ground state in an optical tweezer. After employing Raman sideband cooling for tens of milliseconds, we measure via sideband spectroscopy a three-dimensional ground-state occupation of ~90%. We further observe coherent control of the spin and motional state of the trapped atom. O…
Article321 citationsarXiv:1209.2087doi:10.1103/physrevx.2.041014 - Trapped arrays of alkaline earth Rydberg atoms in optical tweezers
Neutral atom qubits with Rydberg-mediated interactions are a leading platform for developing large-scale coherent quantum systems. In the majority of experiments to date, the Rydberg states are not trapped by the same potential that confines ground state atoms, resulting in atom loss and constraints on the achievable interaction time. In this work, we demons…
Article110 citationsarXiv:1912.08754doi:10.1103/physrevlett.128.033201 - Entangling two transportable neutral atoms via local spin exchange
To advance quantum information science a constant pursuit is the search for physical systems that meet the stringent requirements for creating and preserving quantum entanglement. In atomic physics, robust two-qubit entanglement is typically achieved by strong, long-range interactions in the form of Coulomb interactions between ions or dipolar interactions b…
Article142 citationsarXiv:1507.05586doi:10.1038/nature16073 - Narrow-line cooling and imaging of Ytterbium atoms in an optical tweezer array
Engineering controllable, strongly interacting many-body quantum systems is at the frontier of quantum simulation and quantum information processing. Arrays of laser-cooled neutral atoms in optical tweezers have emerged as a promising platform, because of their flexibility and the potential for strong interactions via Rydberg states. Existing neutral atom ar…
Article168 citationsarXiv:1810.10517doi:10.1103/physrevlett.122.143002 - Quantum Computing with Circular Rydberg Atoms
Rydberg atom arrays are a leading platform for quantum computing and simulation, combining strong interactions with highly coherent operations and flexible geometries. However, the achievable fidelities are limited by the finite lifetime of the Rydberg states, as well as technical imperfections such as atomic motion. In this work, we propose a novel approach…
Article94 citationsarXiv:2103.12744doi:10.1103/prxquantum.2.030322 - Spectroscopy and modeling of $^{171}$Yb Rydberg states for high-fidelity two-qubit gates
Highly excited Rydberg states and their interactions play an important role in quantum computing and simulation. These properties can be predicted accurately for alkali atoms with simple Rydberg level structures. However, an extension of these methods to more complex atoms such as alkaline-earth atoms has not been demonstrated or experimentally validated. He…
Article56 citationsarXiv:2406.01482doi:10.1103/physrevx.15.011009 - Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
Quantum entanglement involving coherent superpositions of macroscopically distinct states is among the most striking features of quantum theory, but its realization is challenging, since such states are extremely fragile. Using a programmable quantum simulator based on neutral atom arrays with interactions mediated by Rydberg states, we demonstrate the deter…
Article634 citationsarXiv:1905.05721doi:10.1126/science.aax9743 - Quantum simulation of transverse Ising models with Rydberg atomsArticle95 citationsdoi:10.1088/2058-9565/aa9c59
- Coherent Control of the Fine-Structure Qubit in a Single Alkaline-Earth Atom
We report on the first realization of a novel neutral atom qubit encoded in the metastable fine-structure states ${^3\rm{P}_0}$ and ${^3\rm{P}_2}$ of single $^{88}$Sr atoms trapped in an optical tweezer. Raman coupling of the qubit states promises rapid single-qubit rotations on par with the fast Rydberg-mediated two-body gates. We demonstrate preparation, r…
Article48 citationsarXiv:2401.10679doi:10.1103/physrevlett.132.150606 - Optimizing Rydberg Gates for Logical-Qubit Performance
Robust gate sequences are widely used to reduce the sensitivity of gate operations to experimental imperfections. Typically, the optimization minimizes the average gate error, however, recent work in quantum error correction has demonstrated that the performance of encoded logical qubits is sensitive to not only the average error rate, but also the type of e…
Article53 citationsarXiv:2210.06879doi:10.1103/prxquantum.4.020336 - High-rate quantum LDPC codes for long-range-connected neutral atom registers
High-rate quantum error correcting (QEC) codes with moderate overheads in qubit number and control complexity are highly desirable for achieving fault-tolerant quantum computing. Recently, quantum error correction has experienced significant progress both in code development and experimental realizations, with neutral atom qubit architecture rapidly establis…
Article30 citationsarXiv:2404.13010doi:10.1038/s41467-025-56255-5
Newest work
- Kinetic Slush in Dissipative Rydberg ArraysPreprintarXiv:2610.36661
- Correlation-sensitive magic-state distillation from spin-squeezed neutral atomsPreprintarXiv:2610.36963
- From QCCD Trapped-Ion Hardware to Quantum Compilers: Capabilities, Architectures, and CompilationPreprintarXiv:2610.36965
- Quantum Evolution Kernel for Node-Attributed GraphsPreprintarXiv:2610.36984
- Optimal quantum discrimination at Liouvillian exceptional pointsPreprintarXiv:2610.37660
- Neutrinos as Quantum Information Carriers? A Gap Analysis Against the DiVincenzo CriteriaPreprintarXiv:2610.34666
- Bargmann-invariant witness of the graviton commutatorPreprintarXiv:2610.35253
- Spectral fingerprint recognition of mobile signals via Rydberg atomic sensorsPreprintarXiv:2610.35301
- Rydberg atomic field-enhanced feed beyond electrically small antennasPreprintarXiv:2610.35315
- Analog Quantum Experiments Meet Automatic Differentiation - from Programs to AtomsPreprintarXiv:2610.36167