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Transição de fase quântica e modelos de spins frustrados
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Física - PPGFCâmpus São Carlos, 2007-03-15)
In this thesis, we will study the quantum phase transition of frustrated quantum spin
models: (i) van Hemmen model ( S = 1) with transverse and anisotropic biaxial field (ii)
Heisenberg model (S = 1/2 ) with competitive ...
Protecting The Root Swap Operation From General And Residual Errors By Continuous Dynamical Decoupling
(AMER PHYSICAL SOCCOLLEGE PK, 2015)
Local quenches on quantum many body systems
(Universidade Federal de Minas GeraisUFMG, 2018-06-29)
In this thesis we have studied local quenches on quantum many body systems. We have investigated the variation of von Neumann entropy of subsystem reduced states of general many-body lattice spin systems due to local quantum ...
Symbol correspondences for spin systems
(BirkhäuserCham, 2014)
Dinâmica dissipativa em sistemas quânticos fortemente interagentes
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Física - PPGFCâmpus São Carlos, 2019-12-06)
In this thesis we investigate the dissipative dynamics in strongly interacting quantum
systems. The dissipative dynamics that we investigate has relevance in the generation
of non-classic states of light, such as the ...
Recoherence in the entanglement dynamics and classical orbits in the N-atom Jaynes-Cummings model
(American Physical SocCollege PkEUA, 2001)
Exotic disordered phases in the quantum J1-J2 model on the honeycomb lattice
(American Physical Society, 2013-01)
We study the ground-state phase diagram of the frustrated quantum J 1-J2 Heisenberg antiferromagnet on the honeycomb lattice using a mean-field approach in terms of the Schwinger boson representation of the spin operators. ...
Dissipative dynamics of a two-level system resonantly coupled to a harmonic mode
(Iop Publishing LtdBristolInglaterra, 2008)
Large long-range F-F indirect spin-spin coupling constants. Prediction of measurable F-F couplings over a few nanometers
(American Chemical Society, 2004-05)
Large long-range indirect nuclear spin coupling constants are of great interest for quantum computers. But they are rarely observed and are usually considered very small, unless the coupled nuclear spins are proximate in ...