A5022005945- Quantum Information and Cryptography
- Quantum Computing Algorithms and Architecture
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum and electron transport phenomena
- Quantum optics and atomic interactions
- Strong Light-Matter Interactions
- Advanced Frequency and Time Standards
- Quantum Mechanics and Applications
- Atomic and Subatomic Physics Research
- Advanced Thermodynamics and Statistical Mechanics
- Quantum, superfluid, helium dynamics
- Neural Networks and Reservoir Computing
- Advanced Fiber Laser Technologies
- Magnetic Bearings and Levitation Dynamics
- 3D Modeling in Geospatial Applications
- Superconductivity in MgB2 and Alloys
- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Vibration and Dynamic Analysis
- Full-Duplex Wireless Communications
- Advanced Photonic Communication Systems
- Molecular Junctions and Nanostructures
- Vacuum and Plasma Arcs
- Optical Network Technologies
- Acoustic Wave Resonator Technologies
IonQ (United States)
2019-2020
Duke University
2014-2015
Sandia National Laboratories
2015
National Institute of Standards and Technology
2010-2013
University of Colorado Boulder
2007-2010
Joint Institute for Laboratory Astrophysics
2010
Abstract Quantum computing leverages the quantum resources of superposition and entanglement to efficiently solve computational problems considered intractable for classical computers. Examples include calculating molecular nuclear structure, simulating strongly interacting electron systems, modeling aspects material function. While substantial theoretical advances have been made in mapping these algorithms, there remains a large gap between resource requirements solving such capabilities...
The field of quantum computing has grown from concept to demonstration devices over the past 20 years. Universal offers efficiency in approaching problems scientific and commercial interest, such as factoring large numbers, searching databases, simulating intractable models physics, optimizing complex cost functions. Here, we present an 11-qubit fully-connected, programmable computer a trapped ion system composed 13 $^{171}$Yb$^{+}$ ions. We demonstrate average single-qubit gate fidelities...
Quantum computing leverages the quantum resources of superposition and entanglement to efficiently solve computational problems considered intractable for classical computers. Examples include calculating molecular nuclear structure, simulating strongly-interacting electron systems, modeling aspects material function. While substantial theoretical advances have been made in mapping these algorithms, there remains a large gap between resource requirements solving such capabilities currently...
We present a compact, transportable system that produces Bose–Einstein condensates near the surface of an integrated atom microchip. The occupies volume 0.4 m3, operates at repetition rate as high 0.3 Hz, and consumes average power 525 W. Evaporative cooling in chip trap with frequencies several kilohertz leads to nearly pure containing 1.9×104 R87b atoms. Partial are observed temperature 1.58(8) μK, close theoretical transition 1.1 μK.
Vibration sensitivity is an important specification for oscillators on mobile systems, unmanned aerial vehicles (UAVs) etc. These systems must provide superior performance when subject to severe environmental conditions. Electronic often can sufficiently low intrinsic phase modulation (PM) noise satisfy particular system requirements in a quiet environment. However, mechanical vibration and acceleration introduce deformations that degrade the oscillator's otherwise PM noise. This degrades of...
Optoelectronic oscillators (OEO), utilizing the low loss nature of optical links, can generate oscillations with very high Q values. The long delay line used in oscillator can, however, support many modes oscillation. Mode spacing is inversely proportional to length link. be improved by increasing at expense tighter mode spacing. undesirable become more difficult filter RF domain as becomes closer. There are different techniques for minimizing impact competing on desired one....
We demonstrate direct evaporative cooling of $^{87}$Rb atoms confined in a dimple trap produced by an atom chip. By changing the two chip currents and external bias fields, we show theoretically that depth can be lowered controlled way with no change frequencies or value field at center. Experimentally, maximized decrease allowing some loosening trap. In total, reduced factor 20. The geometric mean was less than 6. measured phase space density final stages increased more orders magnitude,...
Many of the challenges scaling quantum computer hardware lie at interface between qubits and classical control signals used to manipulate them. Modular ion trap architectures address scalability by constructing individual processors interconnected via a network communication channels. Successful operation such requires fully programmable system capable frequency stabilizing continuous wave lasers necessary for trapping cooling qubits, optical combs drive logic gate operations on providing...
We propose a novel qubit state measurement method for photonic frequency qubits using Mach-Zehnder interferometer with unequal path lengths. A practical implementation photons generated by 171Yb+ ions in surface trap is described.
We discuss a practical scheme to implement memory-assisted measurement-device-independent quantum key distribution protocol using trapped ion systems with the potential extend range of conventional QKD by factor 2.
We present a scalable approach to quantum information processing utilizing trapped ions and photons. Ions in microfabricated surface traps provide practical platform for realizing networks of distributed computing nodes repeaters.
A quantum communication node with high quality memories and photonic interfaces capable of logic operations provide a technology platform for realizing repeaters. We will discuss viable implementation in trapped ion systems.
We present a compact, moveable system for producing Bose-Einstein condensates (BECs) on an integrated microchip. The occupies 0.4 m3 and operates as fast 0.3 Hz. Condensates of 1.9 × 104 atoms in 87Rb have been demonstrated.