Search Results - "Brown, Kenneth R."
-
1
Robust 2-Qubit Gates in a Linear Ion Crystal Using a Frequency-Modulated Driving Force
Published in Physical review letters (09-01-2018)“…In an ion trap quantum computer, collective motional modes are used to entangle two or more qubits in order to execute multiqubit logical gates. Any residual…”
Get full text
Journal Article -
2
2D Compass Codes
Published in Physical review. X (29-05-2019)“…The compass model on a square lattice provides a natural template for building subsystem stabilizer codes. The surface code and the Bacon-Shor code represent…”
Get full text
Journal Article -
3
High-Fidelity Two-Qubit Gates Using a Microelectromechanical-System-Based Beam Steering System for Individual Qubit Addressing
Published in Physical review letters (06-10-2020)“…In a large scale trapped atomic ion quantum computer, high-fidelity two-qubit gates need to be extended over all qubits with individual control. We realize and…”
Get full text
Journal Article -
4
Handling leakage with subsystem codes
Published in New journal of physics (30-07-2019)“…Leakage is a particularly damaging error that occurs when a qubit state falls out of its two-level computational subspace. Compared to independent depolarizing…”
Get full text
Journal Article -
5
Simulating the performance of a distance-3 surface code in a linear ion trap
Published in New journal of physics (19-04-2018)“…We explore the feasibility of implementing a small surface code with 9 data qubits and 8 ancilla qubits, commonly referred to as surface-17, using a linear…”
Get full text
Journal Article -
6
Ground-state energy estimation of the water molecule on a trapped-ion quantum computer
Published in npj quantum information (03-04-2020)“…Quantum computing leverages the quantum resources of superposition and entanglement to efficiently solve computational problems considered intractable for…”
Get full text
Journal Article -
7
Quantum Simulation of Polarized Light-Induced Electron Transfer with a Trapped-Ion Qutrit System
Published in The journal of physical chemistry letters (06-07-2023)“…Electron transfer within and between molecules is crucial in chemistry, biochemistry, and energy science. This study describes a quantum simulation method that…”
Get full text
Journal Article -
8
Architecting Noisy Intermediate-Scale Trapped Ion Quantum Computers
Published in 2020 ACM/IEEE 47th Annual International Symposium on Computer Architecture (ISCA) (01-05-2020)“…Trapped ions (TI) are a leading candidate for building Noisy Intermediate-Scale Quantum (NISQ) hardware. TI qubits have fundamental advantages over other…”
Get full text
Conference Proceeding -
9
Graphene reinforced carbon fibers
Published in Science advances (01-04-2020)“…Graphene can substantially enhance the mechanical properties of PAN-derived carbon fibers by minimizing porosity and defects. The superlative…”
Get full text
Journal Article -
10
Suppression of heating rates in cryogenic surface-electrode ion traps
Published in Physical review letters (11-01-2008)“…Dense arrays of trapped ions provide one way of scaling up ion trap quantum information processing. However, miniaturization of ion traps is currently limited…”
Get full text
Journal Article -
11
Observation of vibrational overtones by single-molecule resonant photodissociation
Published in Nature communications (22-07-2015)“…Molecular ions can be held in a chain of laser-cooled atomic ions by sympathetic cooling. This system is ideal for performing high-precision molecular…”
Get full text
Journal Article -
12
Magic state distillation and gate compilation in quantum algorithms for quantum chemistry
Published in International journal of quantum chemistry (05-10-2015)“…Quantum algorithms for quantum chemistry map the dynamics of electrons in a molecule to the dynamics of a coupled spin system. To reach chemical accuracy for…”
Get full text
Journal Article -
13
Trellis Decoding for Qudit Stabilizer Codes and Its Application to Qubit Topological Codes
Published in IEEE transactions on quantum engineering (2024)“…Trellis decoders are a general decoding technique first applied to qubit-based quantum error correction codes by Ollivier and Tillich in 2006. Here, we improve…”
Get full text
Journal Article -
14
Stable Turnkey Laser System for a Yb/Ba Trapped-Ion Quantum Computer
Published in IEEE transactions on quantum engineering (2022)“…This work presents a stable and reliable turnkey continuous-wave laser system for a Yb/Ba multispecies trapped-ion quantum computer. The compact and…”
Get full text
Journal Article -
15
Seeding of Colloidal Au Nanoparticle Solutions. 2. Improved Control of Particle Size and Shape
Published in Chemistry of materials (01-02-2000)“…New fields of research in chemistry and physics require improved synthetic techniques for colloidal metal particles. This paper reports a generally applicable…”
Get full text
Journal Article -
16
Co-designing a scalable quantum computer with trapped atomic ions
Published in npj quantum information (08-11-2016)“…The first generation of quantum computers are on the horizon, fabricated from quantum hardware platforms that may soon be able to tackle certain tasks that…”
Get full text
Journal Article -
17
Limitations of quantum simulation examined by simulating a pairing Hamiltonian using nuclear magnetic resonance
Published in Physical review letters (04-08-2006)“…Quantum simulation uses a well-known quantum system to predict the behavior of another quantum system. Certain limitations in this technique arise, however,…”
Get full text
Journal Article -
18
Fault-tolerant control of an error-corrected qubit
Published in Nature (London) (14-10-2021)“…Quantum error correction protects fragile quantum information by encoding it into a larger quantum system 1 , 2 . These extra degrees of freedom enable the…”
Get full text
Journal Article -
19
Between Shor and Steane: A Unifying Construction for Measuring Error Syndromes
Published in Physical review letters (27-08-2021)“…Fault-tolerant quantum error correction requires the measurement of error syndromes in a way that minimizes correlated errors on the quantum data. Steane and…”
Get full text
Journal Article -
20
Crosstalk Suppression in Individually Addressed Two-Qubit Gates in a Trapped-Ion Quantum Computer
Published in Physical review letters (09-12-2022)“…Crosstalk between target and neighboring spectator qubits due to spillover of control signals represents a major error source limiting the fidelity of…”
Get full text
Journal Article