37 citations · 134 across the 13 of their papers we have counts for
14 papers
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…
Signatures of infinite randomness in transport properties of disordered spin chains
L. F. C. Faria, Victor L. Quito, João C. Getelina +2
We study the spin transport properties of some disordered spin chains with a special focus on the distribution of the frequency-dependent spin conductivity. In the cases of interes…
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…
Quantum order by disorder in Frustrated Spin Nanotubes
João C. Getelina, Zekun Zhuang, Premala Chandra +3
We investigate quantum order by disorder in a frustrated spin nanotube formed by wrapping a - Heisenberg model at 45 around a cylinder. Using Schwinger boson theo…
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…
Inhomogeneous mean-field approach to collective excitations in disordered interacting bosons
Martin Puschmann, João C. Getelina, José A. Hoyos +1
We develop an inhomogeneous quantum mean-field approach to the behavior of collective excitations across the superfluid-Mott glass quantum phase transition in two dimensions, compl…
The correlation functions of certain random antiferromagnetic spin-1/2 critical chains
João C. Getelina, José A. Hoyos
We study the spin-spin correlations in two distinct random critical XX spin-1/2 chain models via exact diagonalization. For the well-known case of uncorrelated random coupling cons…
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…
Entanglement properties of correlated random spin chains and similarities with conformal invariant systems
João C. Getelina, Francisco C. Alcaraz, José A. Hoyos
We study the Rényi entanglement entropy and the Shannon mutual information for a class of spin-1/2 quantum critical XXZ chains with random coupling constants which are partially co…