105 citations · 540 across the 25 of their papers we have counts for
9 papers · 1 filter
Quantum Walks on Arbitrary Spatial Networks with Rydberg Atoms
Gabriel Almeida, Raul Santos, Lara Janiurek +1
Rydberg atoms provide a highly promising platform for quantum computation, leveraging their strong tunable interactions to encode and manipulate information in the electronic state…
Enhancing Quantum Annealing via entanglement distribution
Raúl Santos, Lorenzo Buffoni, Yasser Omar
Quantum Annealing has proven to be a powerful tool to tackle several optimization problems. However, its performance is severely impacted by the limited connectivity of the underly…
Towards near-term quantum simulation of materials
Laura Clinton, Toby Cubitt, Brian Flynn +6
Simulation of materials is one of the most promising applications of quantum computers. On near-term hardware the crucial constraint on these simulations is circuit depth. Many qua…
Observing ground-state properties of the Fermi-Hubbard model using a scalable algorithm on a quantum computer
Stasja Stanisic, Jan Lukas Bosse, Filippo Maria Gambetta +5
The famous, yet unsolved, Fermi-Hubbard model for strongly-correlated electronic systems is a prominent target for quantum computers. However, accurately representing the Fermi-Hub…
Negativity in the Generalized Valence Bond Solid State
Raul A. Santos, V. Korepin
Using a graphical presentation of the spin one dimensional Valence Bond Solid (VBS) state, based on the representation theory of the Lie-algebra of spins, we compute th…
Entanglement spectra of q-deformed higher spin VBS states
Raul A. Santos, Francis N. C. Paraan, Vladimir E. Korepin +1
We calculate the reduced density matrix of a block of integer spin-S's in a q-deformed valence-bond-solid (VBS) state. This matrix is diagonalized exactly for an infinitely long bl…
Entanglement spectra of the q-deformed Affleck-Kennedy-Lieb-Tasaki model and matrix product states
Raul A. Santos, Francis N. C. Paraan, Vladimir E. Korepin +1
We exactly calculate the reduced density matrix of matrix product states (MPS). Our compact result enables one to perform analytic studies of entanglement in MPS. In particular, we…
Entanglement of disjoint blocks in the one dimensional Spin 1 VBS
Raul A. Santos, Vladimir Korepin
Starting with the valence bond solid (VBS) ground state of the 1D AKLT Hamiltonian, we make a partition of the system in 2 subsystems and , where is a block of conse…
Negativity for two blocks in the one dimensional Spin 1 AKLT model
Raul A. Santos, V. Korepin, Sougato Bose
In this paper we compute the entanglement, as quantified by negativity, between two blocks of length and , separated by sites in the one dimensional spin-1 AKLT mode…