1.3k citations · 2.5k across the 27 of their papers we have counts for
27 papers
Remote entanglement need not be the bottleneck for modular trapped-ion quantum computing
Felix W. Knollmann, David P. Nadlinger, John Blue +7
Modularity underpins classical computing; as quantum processors encounter limits on fabrication yield, reliability, and size, they will also need it acutely. The bottleneck to link…
Real-time magnetic field noise correction using trapped-ion monitor qubits
Kyle DeBry, Agustin Valdes-Martinez, David Reens +2
We demonstrate a trapped-ion protocol in which a nearby, dedicated "monitor" qubit tracks magnetic-field drifts in real time without interrupting data-qubit operations. Using two $…
Collection of fluorescence from an ion using trap-integrated photonics
Felix W. Knollmann, Sabrina M. Corsetti, Ethan R. Clements +12
Spontaneously emitted photons are entangled with the electronic and nuclear degrees of freedom of the emitting atom, so interference and measurement of these photons can entangle s…
Error correction of a logical qubit encoded in a single atomic ion
Kyle DeBry, Nadine Meister, Agustin Valdes Martinez +6
Quantum error correction (QEC) is essential for quantum computers to perform useful algorithms, but large-scale fault-tolerant computation remains out of reach due to demanding req…
Sub-Doppler cooling of a trapped ion in a phase-stable polarization gradient
Ethan Clements, Felix W. Knollmann, Sabrina Corsetti +17
Trapped ions provide a highly controlled platform for quantum sensors, clocks, simulators, and computers, all of which depend on cooling ions close to their motional ground state.…
Integrated-Photonics-Based Systems for Polarization-Gradient Cooling of Trapped Ions
Sabrina M. Corsetti, Ashton Hattori, Ethan R. Clements +14
Trapped ions are a promising modality for quantum systems, with demonstrated utility as the basis for quantum processors and optical clocks. However, traditional trapped-ion system…
Optical Atomic Clock Interrogation Via an Integrated Spiral Cavity Laser
William Loh, David Reens, Dave Kharas +18
Optical atomic clocks have demonstrated revolutionary advances in precision timekeeping, but their applicability to the real world is critically dependent on whether such clocks ca…
Experimental quantum channel discrimination using metastable states of a trapped ion
Kyle DeBry, Jasmine Sinanan-Singh, Colin D. Bruzewicz +6
We present experimental demonstrations of accurate and unambiguous single-shot discrimination between three quantum channels using a single trapped ion. The th…
Ablation loading of barium ions into a surface electrode trap
X. Shi, S. L. Todaro, G. L. Mintzer +3
Trapped-ion quantum information processing may benefit from qubits encoded in isotopes that are practically available in only small quantities, e.g. due to low natural abundance or…
High-Fidelity Ion State Detection Using Trap-Integrated Avalanche Photodiodes
David Reens, Michael Collins, Joseph Ciampi +12
Integrated technologies greatly enhance the prospects for practical quantum information processing and sensing devices based on trapped ions. High-speed and high-fidelity ion state…
A Brillouin Laser Optical Atomic Clock
William Loh, Jules Stuart, David Reens +6
Over the last decade, optical atomic clocks have surpassed their microwave counterparts and now offer the ability to measure time with an increase in precision of two orders of mag…
Integrated multi-wavelength control of an ion qubit
Robert J. Niffenegger, Jules Stuart, Cheryl Sorace-Agaskar +10
Monolithic integration of control technologies for atomic systems is a promising route to the development of quantum computers and portable quantum sensors. Trapped atomic ions for…
Dual-Species, Multi-Qubit Logic Primitives for Ca+/Sr+ Trapped-Ion Crystals
C. D. Bruzewicz, R. McConnell, J. Stuart +2
We demonstrate key multi-qubit quantum logic primitives in a dual-species trapped-ion system based on Ca+ and Sr+ ions, using two optical qubits with quantum-logic-co…
Trapped-Ion Quantum Computing: Progress and Challenges
Colin D. Bruzewicz, John Chiaverini, Robert McConnell +1
Trapped ions are among the most promising systems for practical quantum computing (QC). The basic requirements for universal QC have all been demonstrated with ions and quantum alg…
Chip-integrated voltage sources for control of trapped ions
J. Stuart, R. Panock, C. D. Bruzewicz +5
Trapped-ion quantum information processors offer many advantages for achieving high-fidelity operations on a large number of qubits, but current experiments require bulky external…
Evidence for multiple mechanisms underlying surface electric-field noise in ion traps
J. A. Sedlacek, J. Stuart, D. H. Slichter +4
Electric-field noise from ion-trap electrode surfaces can limit the fidelity of multiqubit entangling operations in trapped-ion quantum information processors and can give rise to…
Method for Determination of Technical Noise Contributions to Ion Motional Heating
J. A. Sedlacek, J. Stuart, W. Loh +4
Microfabricated Paul ion traps show tremendous promise for large-scale quantum information processing. However, motional heating of ions can have a detrimental effect on the fideli…
Distance scaling of electric-field noise in a surface-electrode ion trap
J. A. Sedlacek, A. Greene, J. Stuart +4
We investigate anomalous ion-motional heating, a limitation to multi-qubit quantum-logic gate fidelity in trapped-ion systems, as a function of ion-electrode separation. Using a mu…
High-Fidelity, Single-Shot, Quantum-Logic-Assisted Readout in a Mixed-Species Ion Chain
Colin Bruzewicz, Robert McConnell, Jonathon Sedlacek +4
We use a co-trapped ion () to sympathetically cool and measure the quantum state populations of a memory-qubit ion of a different atomic species ($^{40}\mathr…
Heisenberg scaling of imaging resolution by coherent enhancement
Robert McConnell, Guang Hao Low, Theodore J. Yoder +4
Classical imaging works by scattering photons from an object to be imaged, and achieves resolution scaling as , with the imaging time. By contrast, the laws of quan…
Scalable Loading of a Two-Dimensional Trapped-Ion Array
C. D. Bruzewicz, R. McConnell, J. Chiaverini +1
We describe rapid, random-access loading of a two-dimensional (2D) surface-electrode ion-trap array based on two crossed photo-ionization laser beams. With the use of a continuous…
Integrated optical addressing of an ion qubit
Karan K. Mehta, Colin D. Bruzewicz, Robert McConnell +3
The long coherence times and strong Coulomb interactions afforded by trapped ion qubits have enabled realizations of the necessary primitives for quantum information processing (QI…
Reduction of trapped ion anomalous heating by in situ surface plasma cleaning
Robert McConnell, Colin Bruzewicz, John Chiaverini +1
Anomalous motional heating is a major obstacle to scalable quantum information processing with trapped ions. While the source of this heating is not yet understood, several previou…
Measurement of Ion Motional Heating Rates over a Range of Trap Frequencies and Temperatures
C. D. Bruzewicz, J. M. Sage, J. Chiaverini
We present measurements of the motional heating rate of a trapped ion at different trap frequencies and temperatures between 0.6 and 1.5 MHz and 4 and 295 K. Additional…