26 citations · 107 across the 9 of their papers we have counts for
9 papers
From Heisenberg to Hubbard: An initial state for the shallow quantum simulation of correlated electrons
Bruno Murta, Joaquín Fernández-Rossier
The widespread use of the noninteracting ground state as the initial state for the digital quantum simulation of the Fermi-Hubbard model is largely due to the scarcity of alternati…
Quantum circuits to measure scalar spin chirality
L. I. Reascos, Bruno Murta, E. F. Galvão +1
The scalar spin chirality is a three-body physical observable that plays an outstanding role both in classical magnetism, characterizing non-coplanar spin textures, and in quantum…
Shallow unitary decompositions of quantum Fredkin and Toffoli gates for connectivity-aware equivalent circuit averaging
Pedro M. Q. Cruz, Bruno Murta
The controlled-SWAP and controlled-controlled-NOT gates are at the heart of the original proposal of reversible classical computation by Fredkin and Toffoli. Their widespread use i…
Density-matrix renormalization group: a pedagogical introduction
G. Catarina, Bruno Murta
The physical properties of a quantum many-body system can, in principle, be determined by diagonalizing the respective Hamiltonian, but the dimensions of its matrix representation…
Preparing Valence-Bond-Solid states on noisy intermediate-scale quantum computers
Bruno Murta, Pedro M. Q. Cruz, J. Fernández-Rossier
Quantum state preparation is a key step in all digital quantum simulation algorithms. Here we propose methods to initialize on a gate-based quantum computer a general class of quan…
One-to-one correspondence between thermal structure factors and coupling constants of general bilinear Hamiltonians
Bruno Murta, J. Fernández-Rossier
A theorem that establishes a one-to-one relation between zero-temperature static spin-spin correlators and coupling constants for a general class of quantum spin Hamiltonians bilin…
Gutzwiller wave function on a digital quantum computer
Bruno Murta, Joaquín Fernández-Rossier
The determination of the ground state of quantum many-body systems via digital quantum computers rests upon the initialization of a sufficiently educated guess. This requirement be…
Berry Phase Estimation in Gate-Based Adiabatic Quantum Simulation
Bruno Murta, G. Catarina, J. Fernandez-Rossier
Gate-based quantum computers can in principle simulate the adiabatic dynamics of a large class of Hamiltonians. Here we consider the cyclic adiabatic evolution of a parameter in th…
Understanding and enhancing superconductivity in FeSe/STO by quantum size effects
Bruno Murta, Antonio M. García-García
Superconductivity in one-atom-layer iron selenide (FeSe) on a strontium titanate (STO) substrate is enhanced by almost an order of magnitude with respect to bulk FeSe. There is rec…