Raul A. Santos
Stony Brook University
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Raul A. Santos.
EPL | 2012
Raul A. Santos; Francis N. C. Paraan; Vladimir E. Korepin; Andreas Klümper
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 consider the MPS ground states of two anisotropic spin chains. One is a q-deformed Affleck-Kennedy-Lieb-Tasaki (AKLT) model and the other is a general spin-1 quantum antiferromagnet with nearest-neighbor interactions. Our analysis shows how anisotropy affects entanglement on different continuous parameter manifolds. We also construct an effective boundary spin model that describes a block of spins in the ground state of the q-deformed AKLT Hamiltonian. The temperature of this effective model is given in terms of the deformation parameter q.
Physical Review B | 2016
D. B. Gutman; I. V. Protopopov; A. L. Burin; I. V. Gornyi; Raul A. Santos; A. D. Mirlin
We study the heat conductivity in Anderson insulators in the presence of power-law interaction. Particle-hole excitations built on localized electron states are viewed as two-level systems randomly distributed in space and energy and coupled due to electron-electron interaction. A small fraction of these states form resonant pairs that in turn build a complex network allowing for energy propagation. We identify the character of energy transport through this network and evaluate the thermal conductivity. For physically relevant cases of 2D and 3D spin systems with
Journal of Physics A | 2012
Raul A. Santos; Vladimir E. Korepin
1/r^3
Journal of Physics A | 2012
Raul A. Santos; Francis N. C. Paraan; Vladimir E. Korepin; Andreas Klümper
dipole-dipole interaction (originating from the conventional
Physical Review B | 2016
Raul A. Santos; D. B. Gutman; Sam T. Carr
1/r
Physical Review B | 2015
Raul A. Santos; Chia-Wei Huang; Yuval Gefen; D. B. Gutman
Coulomb interaction between electrons), the found thermal conductivity
Physical Review B | 2015
Raul A. Santos; D. B. Gutman
\kappa
Quantum Information Processing | 2016
Raul A. Santos; Vladimir E. Korepin
scales with temperature as
Protein Science | 2017
Nikolaos Kainaris; Raul A. Santos; D. B. Gutman; Sam T. Carr
\kappa\propto T^3
Physical Review B | 2013
Raul A. Santos
and