Publications (15)
Exact block encoding of imaginary time evolution with universal quantum neural networks
Ermal Rrapaj, Evan Rule
We develop a constructive approach to generate quantum neural networks capable of representing the exact thermal states of all many-body qubit Hamiltonians. The Trotter expansion o…
Nearly optimal polynomial approximations for the quantum singular value transform
Evan Rule
The paper presents simple Chebyshev‑based polynomial approximations of even and odd step functions on [-1,1] that achieve nearly optimal error, and shows how these can be employed…
Is the Turner Window Open? Seeking Closure with Resonant Absorption of Galactic Axions in NaI Dark Matter Detectors
W. C. Haxton, Xing Liu, Anupam Ray +1
Motivated by the DAMA/LIBRA annual modulation signal, the dark matter community has invested heavily in ultra-clean underground NaI detectors to search for light WIMPs. We point ou…
Nuclear-level Effective Theory of Conversion: Formalism and Applications
W. C. Haxton, Evan Rule, Ken McElvain +1
New mu-to-e conversion searches aim to advance limits on charged lepton flavor violation (CLFV) by four orders of magnitude. By considering P and CP selection rules and the structu…
A time-dependent wave-packet approach to reactions for quantum computation
Evan Rule, Ionel Stetcu
We describe a method for obtaining the scattering matrix for nuclear or chemical reactions on a finite lattice. Aside from the preparation of the initial and final states as wave p…
Nuclear-level effective theory of conversion: Inelastic process
W. C. Haxton, Evan Rule
Mu2e and COMET will search for electrons produced via the neutrinoless conversion of stopped muons bound in 1s atomic orbits of Al, improving existing limits on charged lept…
Effective theory tower for conversion
Wick Haxton, Kenneth McElvain, Tony Menzo +2
We present theoretical predictions for conversion rates using a tower of effective field theories connecting the UV to nuclear physics scales. The interactions in…
Nuclear-Level Effective Theory of Conversion
Evan Rule, W. C. Haxton, Ken McElvain
The Mu2e and COMET conversion experiments are expected to significantly advance limits on new sources of charged lepton flavor violation (CLFV). Almost all theore…
Revisiting Turner Window Axions: The Untapped Potential of NaI Dark Matter Detectors
W. C. Haxton, Xing Liu, Anupam Ray +1
The "Turner window" corresponds to axions with masses 1 eV that have sufficiently strong couplings to matter to evade limits from the cooling of SN1987A. This window, thr…
Next-to-leading order scalar contributions to conversion
Vincenzo Cirigliano, Kaori Fuyuto, Michael J. Ramsey-Musolf +1
Within a class of models in which lepton flavor violation is induced dominantly by scalar particle exchanges, we estimate the conversion rate in several nuclei. We includ…
Simplified projection on total spin zero for state preparation on quantum computers
Evan Rule, Ionel Stetcu, Joseph Carlson
We introduce a simple algorithm for projecting on states of a many-body system by performing a series of rotations to remove states with angular momentum projections greater…
The Gallium Solar Neutrino Capture Cross Section Revisited
W. C. Haxton, Evan Rule
Solar neutrino flux constraints from the legacy GALLEX/GNO and SAGE experiments continue to influence contemporary global analyses of neutrino properties. The constraints depend on…
The Effective Theory of Muon-to-Electron Conversion
W. C. Haxton, Evan Rule
We summarize recent work to develop an effective theory of muon-to-electron conversion, based on a complete set of low-energy effective operators that are developed from a systemat…
Distinguishing charged lepton flavor violation scenarios with inelastic conversion
W. C. Haxton, Evan Rule
The Mu2e and COMET experiments are expected to improve existing limits on charged lepton flavor violation (CLFV) by roughly four orders of magnitude. conversion e…
High-n Hydrogen Recombination Lines from the First Galaxies
Evan Rule, Abraham Loeb, Vladimir Strelnitski
We investigate the prospects of blind and targeted searches in the radio domain (10 MHz to 1 THz) for high-n hydrogen recombination lines from the first generation of galaxies, at…