301 citations · 1.9k across the 37 of their papers we have counts for
38 papers
Quantum simulation of electronic structure via quantum fast multipole method
Dominic W. Berry, Kianna Wan, Andrew D. Baczewski +3
Here we describe an approach for simulating electronic structure on quantum computers with significantly lower asymptotic complexity than prior work. The approach uses a real-space…
A small and interesting architecture for early fault-tolerant quantum computers
Jacob S. Nelson, Andrew J. Landahl, Andrew D. Baczewski
We present an architecture for early fault-tolerant quantum computers based on the smallest interesting colour code (Earl Campbell, 2016). It realizes a universal logical gate set…
Roadmap for warm dense matter physics
Jan Vorberger, Frank Graziani, David Riley +71
This roadmap presents the state-of-the-art, current challenges and near future developments anticipated in the thriving field of warm dense matter physics. Originating from strongl…
Statistical inference of collision frequencies from x-ray Thomson scattering spectra
Thomas W. Hentschel, Alina Kononov, Andrew D. Baczewski +1
Thomson scattering spectra measure the response of plasma particles to incident radiation. In warm dense matter, which is opaque to visible light, x-ray Thomson scattering (XRTS) e…
Benchmarking quantum computers
Timothy Proctor, Kevin Young, Andrew D. Baczewski +1
The rapid pace of development in quantum computing technology has sparked a proliferation of benchmarks for assessing the performance of quantum computing hardware and software. Go…
An assessment of quantum phase estimation protocols for early fault-tolerant quantum computers
Jacob S. Nelson, Andrew D. Baczewski
We compare several quantum phase estimation (QPE) protocols intended for early fault-tolerant quantum computers (EFTQCs) in the context of models of their implementations on a surf…
Reproducibility of real-time time-dependent density functional theory calculations of electronic stopping power in warm dense matter
Alina Kononov, Alexander J. White, Katarina A. Nichols +2
Real-time time-dependent density functional theory (TDDFT) is widely considered to be the most accurate available method for calculating electronic stopping powers from first princ…
Quantum computation of stopping power for inertial fusion target design
Nicholas C. Rubin, Dominic W. Berry, Alina Kononov +7
Stopping power is the rate at which a material absorbs the kinetic energy of a charged particle passing through it -- one of many properties needed over a wide range of thermodynam…
Electronic structure of boron and aluminum -doped layers in silicon
Quinn T. Campbell, Shashank Misra, Andrew D. Baczewski
Recent work on atomic-precision dopant incorporation technologies has led to the creation of both boron and aluminum -doped layers in silicon with densities above the solid solu…
Feedback-based quantum algorithms for ground state preparation
James B. Larsen, Matthew D. Grace, Andrew D. Baczewski +1
The ground state properties of quantum many-body systems are a subject of interest across chemistry, materials science, and physics. Thus, algorithms for finding ground states can…
Improving dynamic collision frequencies: impacts on dynamic structure factors and stopping powers in warm dense matter
Thomas W. Hentschel, Alina Kononov, Alexandra Olmstead +3
Simulations and diagnostics of high-energy-density plasmas and warm dense matter rely on models of material response properties, both static and dynamic (frequency-dependent). Here…
Quantum simulation of exact electron dynamics can be more efficient than classical mean-field methods
Ryan Babbush, William J. Huggins, Dominic W. Berry +6
Quantum algorithms for simulating electronic ground states are slower than popular classical mean-field algorithms such as Hartree-Fock and density functional theory, but offer hig…
Electronic Density Response of Warm Dense Matter
Tobias Dornheim, Zhandos A. Moldabekov, Kushal Ramakrishna +11
Matter at extreme temperatures and pressures -- commonly known as warm dense matter (WDM) in the literature -- is ubiquitous throughout our Universe and occurs in a number of astro…
Impact of Electronic Correlations on High-Pressure Iron: Insights from Time-Dependent Density Functional Theory
Kushal Ramakrishna, Mani Lokamani, Andrew Baczewski +2
We present a comprehensive investigation of the electrical and thermal conductivity of iron under high pressures at ambient temperature, employing the real-time formulation of time…
Electron dynamics in extended systems within real-time time-dependent density functional theory
Alina Kononov, Cheng-Wei Lee, Tatiane Pereira dos Santos +10
Due to a beneficial balance of computational cost and accuracy, real-time time-dependent density functional theory has emerged as a promising first-principles framework to describe…
An \textit{ab initio} study of shock-compressed copper
Maximilian Schörner, Bastian B. L. Witte, Andrew D. Baczewski +2
We investigate shock-compressed copper in the warm dense matter regime by means of density functional theory molecular dynamics simulations. We use neural-network-driven interatomi…
Electrical Conductivity of Iron in Earth's Core from Microscopic Ohm's Law
Kushal Ramakrishna, Mani Lokamani, Andrew Baczewski +2
Understanding the electronic transport properties of iron under high temperatures and pressures is essential for constraining geophysical processes. The difficulty of reliably meas…
First-principles simulation of light-ion microscopy of graphene
Alina Kononov, Alexandra Olmstead, Andrew D. Baczewski +1
The extreme sensitivity of 2D materials to defects and nanostructure requires precise imaging techniques to verify presence of desirable and absence of undesirable features in the…
Engineering local strain for single-atom nuclear acoustic resonance in silicon
Laura A. O'Neill, Benjamin Joecker, Andrew D. Baczewski +1
Mechanical strain plays a key role in the physics and operation of nanoscale semiconductor systems, including quantum dots and single-dopant devices. Here we describe the design of…
Precision tomography of a three-qubit donor quantum processor in silicon
Mateusz T. Mądzik, Serwan Asaad, Akram Youssry +17
Nuclear spins were among the first physical platforms to be considered for quantum information processing, because of their exceptional quantum coherence and atomic-scale footprint…
The impact of stochastic incorporation on atomic-precision Si:P arrays
Jeffrey A. Ivie, Quinn Campbell, Justin C. Koepke +9
Scanning tunneling microscope lithography can be used to create nanoelectronic devices in which dopant atoms are precisely positioned in a Si lattice within 1 nm of a target…
Effective out-of-plane g-factor in strained-Ge/SiGe quantum dots
Andrew J. Miller, Mitchell Brickson, Will J. Hardy +6
Recently, lithographic quantum dots in strained-Ge/SiGe have become a promising candidate for quantum computation, with a remarkably quick progression from demonstration of a quant…
Full configuration interaction simulations of exchange-coupled donors in silicon using multi-valley effective mass theory
Benjamin Joecker, Andrew D. Baczewski, John K. Gamble +3
Donor spin in silicon have achieved record values of coherence times and single-qubit gate fidelities. The next stage of development involves demonstrating high-fidelity two-qubit…
Consistency testing for robust phase estimation
Antonio E. Russo, William M. Kirby, Kenneth M. Rudinger +2
We present an extension to the robust phase estimation protocol, which can identify incorrect results that would otherwise lie outside the expected statistical range. Robust phase…