A5066245711- Quantum Computing Algorithms and Architecture
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum Information and Cryptography
- Quantum, superfluid, helium dynamics
- Quantum and electron transport phenomena
- Quantum Mechanics and Applications
- Quantum many-body systems
- Quantum optics and atomic interactions
- Atomic and Subatomic Physics Research
- Physics of Superconductivity and Magnetism
- Electronic and Structural Properties of Oxides
- Machine Learning in Materials Science
- Optical Network Technologies
- Neural Networks and Reservoir Computing
- Semiconductor Quantum Structures and Devices
- Matrix Theory and Algorithms
- Dark Matter and Cosmic Phenomena
- Numerical Methods and Algorithms
- Superconducting and THz Device Technology
- Ferroelectric and Negative Capacitance Devices
- Radio Astronomy Observations and Technology
- Advanced Semiconductor Detectors and Materials
- Pulsars and Gravitational Waves Research
- Neural Networks and Applications
- Face and Expression Recognition
Fermi National Accelerator Laboratory
2021-2025
Princeton University
2021
Tibbar Plasma Technologies (United States)
2021
General Atomics (United States)
2021
Los Alamos National Laboratory
2021
Georgia Southern University
2018-2019
Georgia Institute of Technology
2016-2018
In this work, we explore the interplay of confinement, string breaking and entanglement asymmetry on a 1D quantum Ising chain. We consider evolution an initial domain wall show that, surprisingly, while introduction confinement through longitudinal field typically suppresses entanglement, it can also serve to increase beyond bound set for free particles. Our model be tuned conserve number walls, which gives opportunity associated with link variables. study two approaches deal non-locality...
Quantum spin systems may offer the first opportunities for beyond-classical quantum computations of scientific interest. While general simulation algorithms likely require error-corrected qubits, there be applications interest prior to practical implementation error correction. The variational eigensolver (VQE) is a promising approach finding energy eigenvalues on noisy computers. Lattice models are broad use near-term hardware due sparsity number Hamiltonian terms and possibility matching...
Quantum many-body scar states are highly excited eigenstates of systems that exhibit atypical entanglement and correlation properties relative to typical at the same energy density. Scar also give rise infinitely long-lived coherent dynamics when system is prepared in a special initial state having finite overlap with them. Many models exact have been constructed, but fate scarred these perturbed difficult study classical computational techniques. In this work, we propose preparation...
Response functions are a key quantity to describe the near-equilibrium dynamics of strongly-interacting many-body systems. Recent techniques that attempt overcome challenges calculating these \emph{ab initio} have employed expansions in terms orthogonal polynomials. We employ neural network prediction algorithm reconstruct response function $S(\omega)$ defined over range frequencies $\omega$. represent calculated as truncated Chebyshev series whose coefficients can be optimized reduce...
Quantum information science harnesses the principles of quantum mechanics to realize computational algorithms with complexities vastly intractable by current computer platforms. Typical applications range from chemistry optimization problems and also include simulations for high energy physics. The recent maturing hardware has triggered preliminary explorations several institutions (including Fermilab) capable demonstrating advantage in multiple domains, computing communications, sensing....
This is a Snowmass white paper on the utility of existing and future superconducting cavities to probe fundamental physics. Superconducting radio frequency (SRF) cavity technology has seen tremendous progress in past decades, as tool for accelerator science. With advances spear-headed by SQMS center at Fermilab, they are now being brought quantum regime becoming science thanks high degree coherence. The same quality factor can be leveraged search new physics, including searches particles,...
We discuss the implementation of quantum algorithms for lattice $\Phi^4$ theory on circuit electrodynamics (cQED) system. The field is represented qudits in a discretized amplitude basis. main advantage qudit systems that its multi-level characteristic allows interaction to be implemented only with diagonal single-qudit gates. Considering set universal gates formed by phase gate and displacement gate, we address initial state preparation synthesis variational methods.
High-coherence superconducting cavities offer a hardware-efficient platform for quantum information processing. To achieve universal operations of these bosonic modes, the requisite nonlinearity is realized by coupling them to transmon ancilla. However, this configuration susceptible crosstalk errors in dispersive regime, where ancilla frequency Stark-shifted state each coupled mode. This leads mismatch drive, lowering gate fidelities. mitigate such coherent errors, we employ optimal control...
High-coherence superconducting cavities offer a hardware-efficient platform for quantum information processing. To achieve universal operations of these bosonic modes, the requisite nonlinearity is realized by coupling them to transmon ancilla. However, this configuration susceptible crosstalk errors in dispersive regime, where ancilla frequency Stark shifted state each coupled mode. This leads mismatch drive, lowering gate fidelities. mitigate such coherent errors, we employ optimal control...
We derive general conditions for the emergence of singlet Feshbach molecules in presence artificial Zeeman fields arbitrary mixtures Rashba and Dresselhaus spin-orbit coupling two or three dimensions. focus on formation two-particle bound states resulting from interactions between ultracold $\text{spin-}1/2$ fermions, under assumption that are short ranged occur only $s\text{-wave}$ channel. In this case, we calculate explicitly binding energies bound-state energy thresholds analyze their...
We describe how color superfluidity is modified in the presence of color-flip and color-orbit fields context ultracold atoms discuss connections between this problem that superconductivity quantum chromodynamics. study case $s$-wave contact interactions different colors we identify several superfluid phases, with five being nodal one fully gapped. When our system described a mixed-color basis, order parameter tensor characterized by six independent components explicit momentum dependence...
We discuss the implementation of quantum algorithms for lattice $\Phi^4$ theory on circuit electrodynamics (cQED) system. The field is represented qudits in a discretized amplitude basis. main advantage qudit systems that its multi-level characteristic allows interaction to be implemented only with diagonal single-qudit gates. Considering set universal gates formed by phase gate and displacement gate, we address initial state preparation synthesis variational methods.
A rotating tokamak plasma can interact resonantly with the external helical magnetic perturbations, also known as error fields. This lead to locking and then disruptions. We leverage machine learning (ML) methods predict events. use a coupled third-order nonlinear ordinary differential equation model represent interaction of perturbation rotation field. is sufficient describe qualitatively unlocking bifurcations. explore using ML algorithms simulation data experimental data, focusing on that...
Sensing with hybrid systems formed of superconducting levitated spheres and qubitsLevitated at ultra-low temperatures have very long relaxation times 4 , which can be leveraged in quantum sensing practical applications (e.g.gravimetry) addition to fundamental application (e.g.dark matter detection 5 ).Coupling a sphere qubit enables new measurement protocols. Qubit Levitated sphereAdvanced design material characterization are critical this platform, leveraging SQMS expertise research...
In this work, we explore the interplay of confinement, string breaking and entanglement asymmetry on a 1D quantum Ising chain. We consider evolution an initial domain wall show that, surprisingly, while introduction confinement through longitudinal field typically suppresses entanglement, it can also serve to increase beyond bound set for free particles. Our model be tuned conserve number walls, which gives opportunity associated with link variables. study two approaches deal non-locality...
Our main focus is to investigate the sensitivity of training any SNAP parameters in SNAP-Displacement protocol. We analyze conditions that could potentially lead Barren Plateau problem a qudit system and draw comparisons with multi-qubit systems. The parameterized ansatz we consider consists -Displacement blocks. utilize techniques similar those [8] [2] along concept $t-$design. Through this analysis, make following key observations: (a) trainability SNAP-parameter does not exhibit...
The Circuit Quantum Electrodynamics (Circuit QED) Pulse Control Interface provides a robust platform for designing and testing control signals in transmon-cavity systems. Utilizing PyQt5-based drag-and-drop GUI, this tool facilitates the implementation of two key protocols: Selective Number-dependent Arbitrary Phase (SNAP)-Displacement Echoed Conditional Displacement (ECD). It offers real-time pulse visualization supports CSV exports imports integrating custom signals, thereby enhancing...
Quantum spin systems may offer the first opportunities for beyond-classical quantum computations of scientific interest. While general simulation algorithms likely require error-corrected qubits, there be applications interest prior to practical implementation error correction. The variational eigensolver (VQE) is a promising approach finding energy eigenvalues on noisy computers. Lattice models are broad use near-term hardware due sparsity number Hamiltonian terms and possibility matching...