157 citations · 1.1k across the 37 of their papers we have counts for
9 papers · 1 filter
Isolated zero mode in a quantum computer from a duality twist
Sutapa Samanta, Derek S. Wang, Armin Rahmani +1
Investigating the interplay of dualities, generalized symmetries, and topological defects beyond theoretical models is an important challenge in condensed matter physics and quantu…
Preparing quantum many-body scar states on quantum computers
Erik J. Gustafson, Andy C. Y. Li, Abid Khan +6
Quantum many-body scar states are highly excited eigenstates of many-body systems that exhibit atypical entanglement and correlation properties relative to typical eigenstates at t…
Probing Geometric Excitations of Fractional Quantum Hall States on Quantum Computers
Ammar Kirmani, Kieran Bull, Chang-Yu Hou +5
Intermediate-scale quantum technologies provide new opportunities for scientific discovery, yet they also pose the challenge of identifying suitable problems that can take advantag…
Topological and geometric patterns in optimal bang-bang protocols for variational quantum algorithms: application to the model on the square lattice
Matthew T. Scoggins, Armin Rahmani
In this work, we address the challenge of uncovering patterns in variational optimal protocols for taking the system to ground states of many-body Hamiltonians, using variational q…
Optimal preparation of the state for qubits with XY coupling
Dalton Jones, Armin Rahmani
Using simulated annealing, we find optimal protocols that evolve a simple product state into a three-qubit state with a Hamiltonian that describes XY coupling and single-qubit…
Optimal noise-canceling shortcuts to adiabaticity: application to noisy Majorana-based gates
Kyle Ritland, Armin Rahmani
Adiabatic braiding of Majorana zero modes can be used for topologically protected quantum information processing. While extremely robust to many environmental perturbations, these…
Optimal control of superconducting gmon qubits using Pontryagin's minimum principle: preparing a maximally entangled state with singular bang-bang protocols
Seraph Bao, Silken Kleer, Ruoyu Wang +1
We apply the theory of optimal control to the dynamics of two "gmon" qubits, with the goal of preparing a desired entangled ground state from an initial unentangled one. Given an i…
Optimizing Variational Quantum Algorithms using Pontryagin's Minimum Principle
Zhi-Cheng Yang, Armin Rahmani, Alireza Shabani +2
We use Pontryagin's minimum principle to optimize variational quantum algorithms. We show that for a fixed computation time, the optimal evolution has a bang-bang (square pulse) fo…
Anti-Kibble-Zurek Behavior in Crossing the Quantum Critical Point of a Thermally Isolated System Driven by a Noisy Control Field
Anirban Dutta, Armin Rahmani, Adolfo del Campo
We show that a thermally isolated system driven across a quantum phase transition by a noisy control field exhibits anti-Kibble-Zurek behavior, whereby slower driving results in hi…