From the 1 of 5 linked papers with an AI index.
5 papers
Emergence of a Macroscopic Cat State and Multi-Channel Entanglement in a Frustrated Cluster Spin Chain
Mohit Lal Bera, Andreu Anglés-Castillo, Alberto Acevedo Meléndez +8
The paper investigates a one‑dimensional frustrated spin chain that combines cluster‑Ising and anisotropic next‑nearest‑neighbor Ising interactions, revealing two distinct quantum…
Adaptive time Compressed QITE (ACQ) and its geometrical interpretation
Alberto Acevedo Meléndez, Carmen G. Almudéver, Miguel Angel Garcia-March +8
Imaginary time evolution (ITE) is a well-established method for ground-state preparation, a fundamental problem in many fields such as materials science, chemistry, and optimizatio…
Pauli Propagation for Imaginary-Time Evolution
Rafael Gómez-Lurbe, Rafael Gómez-Lurbe, Armando Pérez +1
We extend the Pauli Propagation framework to imaginary-time evolution and introduce imaginary-time Pauli Propagation (ITPP), an operator-based algorithm for approximating thermal a…
Variational noise mitigation in quantum circuits: the case of Quantum Fourier Transform
Rafael Gómez-Lurbe, Alexander Bernal, Armando Pérez +2
We propose using variational quantum algorithms (VQAs) to simulate established quantum algorithms under realistic noise conditions, aiming to surpass the fidelity of theoretical ci…
Efficient protocol to estimate the Quantum Fisher Information Matrix for Commuting-Block Circuits
Rafael Gómez-Lurbe
The Quantum Fisher Information Matrix (QFIM) is a fundamental quantity in various subfields of quantum physics. It plays a crucial role in the study of parameterized quantum states…