This talk will describe three types of experiments that use techniques of single quantum state preparation, state engineering, and projective state readout to measure fundamental symmetry-violating properties of nuclei, often at the standard quantum limit of sensitivity. These are:
1. Ongoing experiments to search for parity (P) and time reversal (T) violating nuclear Schiff moments, which...
I will present recent experiments that simulate several phenomena in nuclear and high-energy physics. This includes of meson scattering [1], string-breaking [2], bubble nucleation across a quantum phase transition [3], and the programming of HaPPY codes related to AdS/CFT holographic duality. These simulations exploit the platform of trapped atomic ions, featuring qubits (spins) with...
In this talk, we present a large-scale quantum simulation of the one-dimensional Fermi-Hubbard model, a paradigmatic fermionic model, on IBM's superconducting quantum computers with over 100 qubits. By developing first-order and second-order optimized Trotterization circuits, we maintain a constant circuit depth in quantum simulation regardless of system size on superconducting quantum...
In this talk, I will examine the conditions under which quantum operations preserve environment-assisted invariance (envariance), a symmetry of entanglement. While envariance has traditionally been studied in the context of local unitary operations, I extend the analysis to include non-unitary local operations. I will show that, to maintain envariance, such operations must admit Kraus...
I will give an overview of research in my group at the University of Illinois, including measurements of mobility in optical lattice Hubbard models, photonic cluster state generation using trapped atomic ions, and work to entangle atomic ions with silicon carbide di-vacancy centers. I will also talk about my role as Chief Technology Officer in launching the Illinois Quantum and...
We present a new approach to search for radiative decays of very weakly interacting particles using quantum sensors. Superconducting transmon qubits and trapped ion systems can detect extremely small electromagnetic signals produced by decay photons. We study two physics cases: dark matter and the cosmic neutrino background. We show that current quantum devices can already probe radiative...
Practical Quantum Machine Learning (QML) is challenged by noise, limited scalability, and poor trainability in Variational Quantum Circuits (VQCs) on current hardware. We propose a multi-chip ensemble VQC framework that systematically overcomes these hurdles. By partitioning high-dimensional computations across ensembles of smaller, independently operating quantum chips and leveraging...
Understanding decoherence and dissipation remains a central challenge for quantum information science, particularly in many-body systems where system–environment coupling gives rise to rich and not yet fully understood dynamics. Neutral-atom tweezer arrays offer a promising route toward controlled many-body quantum simulators in which local information spreading through an interacting system...
Extending the quantum formulation of [Phys. Rev. X 3, 041003 (2013)] to a more general setting for studying the thermodynamics of information processing including initial correlations, we generalize the second law of thermodynamics to account for information processing in such autonomous systems. We consider a composite quantum system consisting of a principal system, heat bath, memory, and...
