Publications (14)
Tungsten boride shields in a spherical tokamak
Colin G Windsor, Jack O Astbury, James Davidson +4
The favourable properties of tungsten borides for shielding the central High Temperature Superconductor (HTS) core of a spherical tokamak fusion power plant are modelled using the…
Quantization of Pseudoclassical Systems in the Schrödinger Realization
Theodore J. Allen, Donald Spector, Christopher Wilson
We examine the quantization of pseudoclassical dynamical systems, models that have classically anticommuting variables, in the Schrödinger picture. We quantize these systems, whic…
You Only Crash Once v2: Perceptually Consistent Strong Features for One-Stage Domain Adaptive Detection of Space Terrain
Timothy Chase, Christopher Wilson, Karthik Dantu
The in-situ detection of planetary, lunar, and small-body surface terrain is crucial for autonomous spacecraft applications, where learning-based computer vision methods are increa…
Probing the Critical Point (CritPt) of AI Reasoning: a Frontier Physics Research Benchmark
Minhui Zhu, Minyang Tian, Xiaocheng Yang +61
While large language models (LLMs) with reasoning capabilities are progressing rapidly on high-school math competitions and coding, can they reason effectively through complex, ope…
Breakdown of the cross-Kerr scheme for Photon Counting
Bixuan Fan, Anton F. Kockum, Joshua Combes +6
We show, in the context of single photon detection, that an atomic three-level model for a transmon in a transmission line does not support the predictions of the nonlinear polaris…
Challenges in Constraining Gravity with Cosmic Voids
Christopher Wilson, Rachel Bean
We compare void size and clustering statistics for nDGP and gravity models and GR using N-body simulations. We show how it is critical to consider the statistics derived fro…
Experimental realization of a transmon qubit
Erwan Roverc'h, Alvise Borgognoni, Marius Villiers +7
Superconducting circuits with embedded symmetries are good candidates to robustly protect quantum information from dominant error channels. The qubit, consisting of an…
Geometric Invariants of Quantum Metrology
Christopher Wilson, John Drew Wilson, Luke Coffman +2
We establish a previously unexplored conservation law for the Quantum Fisher Information Matrix (QFIM) expressed as follows; when the QFIM is constructed from a set of observables…
Optimal Generators for Quantum Sensing
Jarrod T. Reilly, John Drew Wilson, Simon B. Jäger +2
We propose a computationally efficient method to derive the unitary evolution that a quantum state is most sensitive to. This allows one to determine the optimal use of an entangle…
Testing Gravity With Scale Dependent Cosmic Void Velocity Profiles
Christopher Wilson, Rachel Bean
We study the impact of cosmological scale modifications to General Relativity on the dynamics of halos within voids by comparing N-body simulations incorporating Hu-Sawicki …
Spaceflight KID Readout Electronics for PRIMA
Thomas Essinger-Hileman, C. Matt Bradford, Patrick Brown +23
We present the design and testing of a prototype multiplexing kinetic inductance detector (KID) readout electronics for the PRobe far-Infrared Mission for Astrophysics (PRIMA) spac…
Fisher's Mirage: Noise Tightening of Cosmological Constraints in Simulation-Based Inference
Christopher Wilson, Rachel bean
We systematically analyze the implications of statistical noise within numerical derivatives on simulation-based Fisher forecasts for large scale structure surveys. Noisy numerical…
Quantum Information Science and Technology for Nuclear Physics. Input into U.S. Long-Range Planning, 2023
Douglas Beck, Joseph Carlson, Zohreh Davoudi +98
In preparation for the 2023 NSAC Long Range Plan (LRP), members of the Nuclear Science community gathered to discuss the current state of, and plans for further leveraging opportun…
Essential System Services in Grids Dominated by Renewable Energy
Niraj Lal, Toby Price, Leon Kwek +5
As the proportion of variable inverter-based renewable energy generation in electricity systems increases from a minority to the majority of total supply, the complexity and cost o…