activity
20192026
most citedImportance of van der Waals interactions for ab initio studies of topological insulators

19 citations · 28 across the 12 of their papers we have counts for

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10 papers · 1 filter

quant-ph2026

An efficient algorithm for approximate shadow Hamiltonian simulation

Abhijit Chakraborty, Bharath Sambasivam, Karunya Shirali +4

We propose an efficient algorithm based on shadow Hamiltonian simulation to approximately simulate the real-time dynamics of observables under time-independent Hamiltonians. Shadow…

quant-ph2026

Q3SAT-GPT: A Generative Model for Discovering Quantum Circuits for the 3-SAT Problem

Pratim Ugale, Ilya Tyagin, Karunya Shirali +2

This work introduces Q3SAT-GPT, a generative model for discovering quantum circuits for the Max-E3-SAT problem. Our method learns from high-performing QAOA-style ansätze to directl…

quant-ph2026

TIMES-ADAPT: A Quantum algorithm for real-time evolution in low-energy subspaces using fixed-depth circuits

Bharath Sambasivam, Kyle Sherbert, Karunya Shirali +3

We propose a new variational quantum algorithm, which we refer to as TIMES-ADAPT, that prepares time-evolved states in a low-energy or symmetric subspace of a time-independent Hami…

quant-ph2025

To break, or not to break: Symmetries in adaptive quantum simulations, a case study on the Schwinger model

Karunya Shailesh Shirali, Kyle Sherbert, Yanzhu Chen +4

We investigate the role of symmetries in constructing resource-efficient operator pools for adaptive variational quantum eigensolvers. In particular, we focus on the lattice Schwin…

quant-ph2025★ 3 cited

QAOA-GPT: Efficient Generation of Adaptive and Regular Quantum Approximate Optimization Algorithm Circuits

Ilya Tyagin, Marwa H. Farag, Kyle Sherbert +3

Quantum computing has the potential to improve our ability to solve certain optimization problems that are computationally difficult for classical computers, by offering new algori…

quant-ph2025★ 1 cited

TEPID-ADAPT: Adaptive variational method for simultaneous preparation of low-temperature Gibbs and low-lying eigenstates

Bharath Sambasivam, Kyle Sherbert, Karunya Shirali +4

Preparing Gibbs states, which describe systems in equilibrium at finite temperature, is of great importance, particularly at low temperatures. In this work, we propose a new method…

quant-ph2025

Floquet-ADAPT-VQE: A Quantum Algorithm to Simulate Non-Equilibrium Physics in Periodically Driven Systems

Abhishek Kumar, Karunya Shirali, Nicholas J. Mayhall +2

Periodically driven quantum systems exhibit many fascinating phenomena absent in equilibrium systems, but their simulation is more challenging than that of static systems. Conseque…

quant-ph2024★ 1 cited

Surrogate Constructed Scalable Circuits ADAPT-VQE in the Schwinger model

Erik Gustafson, Kyle Sherbert, Adrien Florio +8

Inspired by recent advancements of simulating periodic systems on quantum computers, we develop a new approach, (SC)-ADAPT-VQE, to further advance the simulation of these syste…

quant-ph2024★ 1 cited

Adaptive Quantum Generative Training using an Unbounded Loss Function

Kyle Sherbert, Jim Furches, Karunya Shirali +2

We propose a generative quantum learning algorithm, Rényi-ADAPT, using the Adaptive Derivative-Assembled Problem Tailored ansatz (ADAPT) framework in which the loss function to be…

quant-ph2022★ 1 cited

Scaling adaptive quantum simulation algorithms via operator pool tiling

John S. Van Dyke, Karunya Shirali, George S. Barron +3

Adaptive variational quantum simulation algorithms use information from the quantum computer to dynamically create optimal trial wavefunctions for a given problem Hamiltonian. A ke…