37 citations · 134 across the 13 of their papers we have counts for
9 papers · 1 filter
Large-scale quantum simulations of dissipative spin-1/2 Heisenberg chains
João C. Getelina, Andrew Cox, Muhammad Asaduzzaman +4
A quantum many-body system coupled to an environment relaxes to a nonequilibrium steady state that can sustain order with no equilibrium counterpart. Computing such steady states i…
Quantum simulation of massive Thirring and Gross--Neveu models for arbitrary number of flavors
Bojko N. Bakalov, Joao C. Getelina, Raghav G. Jha +2
The study of fermionic quantum field theories is an important problem for realizing the standard model of particle physics on a quantum computer. As a step towards this goal, we co…
Minimally Entangled Typical Thermal States for Classical and Quantum Simulation of 1+1-Dimensional Lattice Gauge Theory at Finite Temperature and Density
I-Chi Chen, João C. Getelina, Klée Pollock +4
Simulating strongly coupled gauge theories at finite temperature and density is a longstanding challenge in nuclear and high-energy physics that also has fundamental implications f…
Cheaper and more noise-resilient quantum state preparation using eigenvector continuation
Anjali A. Agrawal, João C. Getelina, Akhil Francis +1
Subspace methods are powerful, noise-resilient methods that can effectively prepare ground states on quantum computers. The challenge is to get a subspace with a small condition nu…
Quantum subspace expansion in the presence of hardware noise
João C. Getelina, Prachi Sharma, Thomas Iadecola +2
Finding ground state energies on current quantum processing units (QPUs) using algorithms like the variational quantum eigensolver (VQE) continues to pose challenges. Hardware nois…
Adaptive variational ground state preparation for spin-1 models on qubit-based architectures
João C. Getelina, Cai-Zhuang Wang, Thomas Iadecola +2
We apply the adaptive variational quantum imaginary time evolution (AVQITE) method to prepare ground states of one-dimensional spin models. We compare different spin-to-qubit…
Adaptive variational quantum minimally entangled typical thermal states for finite temperature simulations
João C. Getelina, Niladri Gomes, Thomas Iadecola +2
Scalable quantum algorithms for the simulation of quantum many-body systems in thermal equilibrium are important for predicting properties of quantum matter at finite temperatures.…
Comparative study of adaptive variational quantum eigensolvers for multi-orbital impurity models
Anirban Mukherjee, Noah F. Berthusen, João C. Getelina +2
Hybrid quantum-classical embedding methods for correlated materials simulations provide a path towards potential quantum advantage. However, the required quantum resources arising…
Violation of the Bell inequality in quantum critical random spin- chains
João C. Getelina, Thiago R. de Oliveira, José A. Hoyos
We investigate the entanglement and nonlocality properties of two random XX spin-1/2 critical chains, in order to better understand the role of breaking translational invariance to…