A5039458661- Quantum Computing Algorithms and Architecture
- Astro and Planetary Science
- Quantum Information and Cryptography
- Planetary Science and Exploration
- Stellar, planetary, and galactic studies
- Quantum and electron transport phenomena
- Advanced Fiber Laser Technologies
- Isotope Analysis in Ecology
- Photonic Crystal and Fiber Optics
- Advancements in Semiconductor Devices and Circuit Design
- Laser-Matter Interactions and Applications
- Quantum many-body systems
- Semiconductor materials and devices
- Gamma-ray bursts and supernovae
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Optical Network Technologies
- Quantum-Dot Cellular Automata
- Astronomy and Astrophysical Research
- Solid State Laser Technologies
- Computational Physics and Python Applications
- Spacecraft and Cryogenic Technologies
- Scientific Research and Discoveries
- Text and Document Classification Technologies
- Laser-Plasma Interactions and Diagnostics
California Institute of Technology
2023-2024
Infrared Processing and Analysis Center
2023-2024
University of California, Berkeley
2017-2021
Lawrence Berkeley National Laboratory
2016-2021
Coherent (United States)
2017-2018
nLIGHT (United States)
2014
Harnessing the full power of nascent quantum processors requires efficient management a limited number bits with finite lifetime. Hybrid algorithms leveraging classical resources have demonstrated promising initial results in calculation Hamiltonian ground states--an important eigenvalue problem physical sciences that is often classically intractable. In these protocols, parsed and evaluated term-wise shallow circuit, resulting energy minimized using resources. This reduces consecutive...
Abstract The Near-Earth Object (NEO) Surveyor mission is a NASA Observatory designed to discover and characterize asteroids comets. mission’s primary objective find the majority of objects large enough cause severe regional impact damage (>140 m in effective spherical diameter) within its 5 yr baseline survey. Operating at Sun–Earth L1 Lagrange point, will survey 45° Sun an effort most Earth-like orbits. cadence optimized provide observational arcs long distinguish near-Earth from more...
The theory of quantum information provides a common language which links disciplines ranging from cosmology to condensed-matter physics. For example, the delocalization in strongly-interacting many-body systems, known as scrambling, has recently begun unite our understanding black hole dynamics, transport exotic non-Fermi liquids, and analogs chaos. To date, verified experimental implementations scrambling have dealt only with systems comprised two-level qubits. Higher-dimensional however,...
Abstract The known near-Earth object (NEO) population consists of over 32,000 objects, with a yearly discovery rate 3000 NEOs per year. An essential component the next generation NEO surveys is an understanding including accounting year as function size. Using asteroid (NEA) reference model developed for NASA’s Surveyor (NEOS) mission and major current historical ground-based surveys, estimate NEA survey completeness size absolute magnitude has been determined (termed Known Object Model;...
Quantum computers are inhibited by physical errors that occur during computation. For this reason, the development of increasingly sophisticated error characterization and suppression techniques is central to progress quantum computing. Error distributions considerably influenced precise gate scheduling across entire processing unit. To account for holistic feature, we may ascribe each profile a (clock) cycle, which scheduled list instructions over an arbitrarily large fraction chip. A...
Abstract The Near-Earth Object Surveyor (NEO Surveyor) mission has a requirement to find two-thirds of the potentially hazardous asteroids larger than 140 m in size. In order determine mission’s expected progress toward this goal during design and testing, as well actual survey, simulation tool been developed act consistent quantifiable yardstick. We test that survey software is correctly predicting on-sky positions thermal infrared fluxes by using it reproduce published measurements from...
We report on continued progress in the development of high power and brightness single emitter laser diodes from 790 nm to 980 for reliable use industrial pumping applications. High performance has been demonstrated nLIGHT's diode technology this spectral range with corresponding peak electrical-to-optical conversion efficiency ~65%. These pumps have incorporated into fiber-coupled pump module, elementTM. latest updates reliability chips modules. This paper also includes a new chip design...
Abstract Asteroids with low orbital perihelion distances experience extreme heating from the Sun that can modify their surfaces and trigger nontypical activity mechanisms. These objects are generally difficult to observe ground-based telescopes due frequent proximity Sun. The Near-Earth Object (NEO) Surveyor mission, however, will regularly survey down solar elongations of 45° is well suited for detection characterization low-perihelion asteroids. Here, we use simulation software tools...
We demonstrate a new way to analyze stable, multipass optical cavities (Herriott cells), using the linear canonical transform formalism, showing that re-entrant designs reproduce an arbitrary input field at output, resulting in useful symmetries. use this analysis predict stability of used interferometric delay lines for temporal pulse addition.
Randomized compiling reduces the effects of errors on quantum computers by tailoring arbitrary Markovian into stochastic Pauli noise. Here we prove that randomized also tailors non-Markovian local noise and investigate technique's limitations. We show through analysis numerical results alters in three distinct helpful ways. First, it prevents coherent accumulation (including hard to remove crosstalk effects) across gate cycles destroying intercycle correlations. Second, converts individual...
Abstract Probing small main-belt asteroids provides insight into their formation and evolution through multiple dynamical collisional processes. These also overlap in size with the potentially hazardous near-Earth object population supply majority of these objects. The Lucy mission will perform a flyby asteroid, (152830) Dinkinesh, on 2023 November 1, preparation for its to Jupiter Trojan asteroids. In this Letter, we present data support planning Lucy’s imminent encounter Dinkinesh. We...
A new, scalable method of ultrashort pulse, coherent beam combination is modeled numerically and demonstrated experimentally. 110fs, 1040nm pulses in a 1×4 array are combined using two diffractive optics, preserving pulse duration spectral width.
We demonstrate an implementation of the variational quantum eigensolver using superconducting qubits. explore algorithm's ability to go beyond ground state estimation determine molecular excited states and its inherent robustness noise.
Asteroids with low orbital perihelion distances experience extreme heating from the Sun that can modify their surfaces and trigger non-typical activity mechanisms. These objects are generally difficult to observe ground-based telescopes due frequent proximity Sun. The Near Earth Object Surveyor mission, however, will regularly survey down Solar elongations of 45 degrees is well-suited for detection characterization low-perihelion asteroids. Here, we use simulation software tools developed...
Abstract Near-Earth Object (NEO) Surveyor will detect asteroids and comets using mid-infrared thermal emission, however ground-based followup resources require knowledge of the expected visible light brightness in order to plan characterization observations. Here we describe range visual-to-infrared colors that NEOs detected by span, demonstrate for objects have no previously reported Visual band observations, estimates Johnson Visual-band based on infrared flux alone significant...
NEO Surveyor will detect asteroids and comets using mid-infrared thermal emission, however ground-based followup resources require knowledge of the expected visible light brightness in order to plan characterization observations. Here we describe range visual-to-infrared colors that NEOs detected by span, demonstrate for objects have no previously reported Visual band observations, estimates Johnson Visual-band based on infrared flux alone significant uncertainty. Incidental or targeted...
The Near-Earth Object (NEO) Surveyor mission is a NASA observatory designed to discover and characterize near-Earth asteroids comets. mission's primary objective find the majority of objects large enough cause severe regional impact damage ($>$140 m in effective spherical diameter) within its five-year baseline survey. Operating at Sun-Earth L1 Lagrange point, will survey 45 degrees Sun an effort most Earth-like orbits. cadence optimized provide observational arcs long reliably distinguish...
A turn-key, robust, all-digital, and software-based control system based on stochastic parallel gradient descent algorithm is demonstrated to efficiently stabilize N-cascaded optical cavities of coherent pulse stacking systems.
In order to develop a design for laser-plasma accelerator (LPA) driver, we demonstrate key technologies that enable fiber lasers produce high energy, ultrafast pulses. These must be scalable, and operate in the presence of thermal drift, acoustic noise, other perturbations typical an operating system. We show coherent pulse stacking (CPS), which requires optical interferometers, can made robust by image-relaying, multipass cavities, phase control schemes sense train amplitudes from each...
We report on two-times narrower slow-axis divergence of 9xx nm broad area diode lasers resulting from reduction in allowed lateral modes. This enabled use larger aperture to achieve 30% higher brightness.
Probing small main-belt asteroids provides insight into their formation and evolution through multiple dynamical collisional processes. These also overlap in size with the potentially hazardous near-earth object population supply majority of these objects. The Lucy mission will provide an opportunity for study a asteroid, (152830) Dinkinesh. spacecraft perform flyby this on November 1, 2023, preparation its to Jupiter Trojan asteroids. We employed aperture photometry stacked frames Dinkinesh...
The Near Earth Object Surveyor mission has a requirement to find two-thirds of the potentially hazardous asteroids larger than 140 meters in size. In order determine mission's expected progress toward this goal during design and testing, as well actual survey, simulation tool been developed act consistent quantifiable yardstick. We test that survey software is correctly predicting on-sky positions thermal infrared fluxes by using it reproduce published measurements from NEOWISE mission. then...
The known near-Earth object (NEO) population consists of over 32,000 objects, with a yearly discovery rate 3000 NEOs per year. An essential component the next generation NEO surveys is an understanding including accounting year as function size. Using asteroid (NEA) reference model developed for NASA's Surveyor (NEOS) mission and major current historical ground-based surveys, estimate NEA survey completeness size absolute magnitude has been determined (termed Known Object Model; KOM). This...