Pareto-optimal cycles for power, efficiency and fluctuations of quantum heat engines using reinforcement learning
The full optimization of a quantum heat engine requires operating at high power, high
efficiency, and high stability (ie, low power fluctuations). However, these three objectives …
efficiency, and high stability (ie, low power fluctuations). However, these three objectives …
Universally robust quantum control
We study the robustness of the evolution of a quantum system against small uncontrolled
variations in parameters in the Hamiltonian. We show that the fidelity susceptibility, which …
variations in parameters in the Hamiltonian. We show that the fidelity susceptibility, which …
Quantum optimal control: Practical aspects and diverse methods
Quantum controls realize the unitary or nonunitary operations employed in quantum
computers, quantum simulators, quantum communications, and other quantum information …
computers, quantum simulators, quantum communications, and other quantum information …
Intrinsic decoherence effects on correlated coherence and quantum discord in XXZ Heisenberg model
Spin qubits are at the heart of technological advances in quantum processors and offer an
excellent framework for quantum information processing. This work characterizes the time …
excellent framework for quantum information processing. This work characterizes the time …
Efficiency optimization in quantum computing: balancing thermodynamics and computational performance
We investigate the computational efficiency and thermodynamic cost of the D-Wave
quantum annealer under reverse-annealing with and without pausing. Our demonstration on …
quantum annealer under reverse-annealing with and without pausing. Our demonstration on …
Inverse engineering for robust state transport along a spin chain via low-energy subspaces
Y Ji, Z Wu, R Liu, Y Li, F Jin, H Zhou… - New Journal of …, 2024 - iopscience.iop.org
Quantum state transfer (QST) plays a central role in the field of quantum computation and
communication, but its quality will be deteriorated by the ubiquitous variations and noise in …
communication, but its quality will be deteriorated by the ubiquitous variations and noise in …
Counterdiabatic, Better, Faster, Stronger: Optimal control for approximate counterdiabatic driving
I Čepaitė - arXiv preprint arXiv:2403.20267, 2024 - arxiv.org
Adiabatic protocols are employed across a variety of quantum technologies, from
implementing state preparation and individual operations that are building blocks of larger …
implementing state preparation and individual operations that are building blocks of larger …
Differentiable master equation solver for quantum device characterisation
Differentiable models of physical systems provide a powerful platform for gradient-based
algorithms, with particular impact on parameter estimation and optimal control. Quantum …
algorithms, with particular impact on parameter estimation and optimal control. Quantum …
Balancing Thermodynamics and Computational Performance
T Smierzchalsk, Z Mzaouali, S Deffner - UMBC Faculty Collection - mdsoar.org
We investigate the computational efficiency and thermodynamic cost of the D-Wave
quantum annealer under reverse-annealing with and without pausing. Our experimental …
quantum annealer under reverse-annealing with and without pausing. Our experimental …
Inference of transport phenomena in quantum devices
D Craig - 2023 - ora.ox.ac.uk
This thesis is concerned with charge transport in electrostatically defined quantum dot
devices. Such devices display a wide range of transport phenomena in both open and …
devices. Such devices display a wide range of transport phenomena in both open and …