375 citations · 1.1k across the 44 of their papers we have counts for
44 papers
Role of spectral structure in adiabatic ground-state preparation of the XXZ model
Francisco Albarrán-Arriagada, Juan Carlos Retamal
Adiabatic ground-state preparation is fundamentally limited by the spectral structure of the time-dependent Hamiltonian, particularly by gap reductions and degeneracies that induce…
Quantum Approximate Optimization Algorithm with Fixed Number of Parameters
Sebastián Saavedra-Pino, Ricardo Quispe-Mendizábal, Gabriel Alvarado Barrios +3
We introduce a novel quantum optimization paradigm: the Fixed-Parameter-Count Quantum Approximate Optimization Algorithm (FPC-QAOA). It is a scalable variational framework that mai…
Equally entangled multiqubit states
Francisco Albarrán-Arriagada, Guillermo Romero, Juan Carlos Retamal
We present a protocol for generating multiqubit quantum states with translationally invariant pairwise entanglement. Our approach is tailored for digital quantum computers with res…
Noise reduction via optimal control in a light-matter quantum system
Francisco Albarrán-Arriagada, Guillermo Romero, Enrique Solano +1
Quantum noise reduction below the shot noise limit is a signature of light-matter quantum interaction. A limited amount of squeezing can be obtained along the transient evolution o…
Quantum simulation of entanglement dynamics in a quantum processor
C. Inzulza, S. Saavedra-Pino, F. Albarrán-Arriagada +2
We implement a five-qubit protocol in IBM quantum processors to study entanglement dynamics in a two qubit system in the presence of a simulated environment. Specifically, two qubi…
Embedded Quantum Correlations in thermalized quantum Rabi systems
M. Ahumada, F. A. Cárdenas-López, G. Alvarado Barrios +2
We study the quantum correlations embedded in open quantum Rabi systems. Specifically, we study how the quantum correlation depends on the coupling strength, number of qubits, and…