Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Čadež T"'
Publikováno v:
Nuclear Physics B 960, 115175 (2020)
Recently there has been a renewed interest in the spectra and role in dynamical properties of excited states of the spin-1/2 Heisenberg antiferromagnetic chain in longitudinal magnetic fields associated with Bethe strings. The latter are bound states
Externí odkaz:
http://arxiv.org/abs/2009.10499
Publikováno v:
Nuclear Physics B 942, 45-102 (2019)
The momentum, fermionic density, spin density, and interaction dependencies of the exponents that control the (momentum-energy)-plane singular features of the one-fermion spectral functions of a one-dimensional gas of spin-1/2 fermions with repulsive
Externí odkaz:
http://arxiv.org/abs/1903.11984
Publikováno v:
Phys. Rev. B 100, 035105 (2019)
We study the one-electron spectral properties of one-dimensional interacting electron systems in which the interactions have finite range. We employ a mobile quantum impurity scheme that describes the interactions of the fractionalized excitations at
Externí odkaz:
http://arxiv.org/abs/1801.07732
Publikováno v:
Eur. Phys. J. Spec. Top. 227, 353 (2018)
We consider exactly solvable manipulation of spin-qubits confined in a moving harmonic trap and in the presence of the time dependent Rashba interaction. Non-adiabatic Anandan phase for cyclic time evolution is compared to the Wilczek-Zee adiabatic c
Externí odkaz:
http://arxiv.org/abs/1711.02134
Publikováno v:
Phys. Rev. B 96, 144301 (2017)
We study the localization aspects of a kicked non-interacting one-dimensional (1D) quantum system subject to either time-periodic or non-periodic pulses. These are reflected as sudden changes of the onsite energies in the lattice with different modul
Externí odkaz:
http://arxiv.org/abs/1707.07420
Autor:
Carmelo, J. M. P., Cadez, T.
Publikováno v:
Nuclear Physics B 914, 461-552 (2017)
The momentum, electronic density, spin density, and interaction dependences of the exponents that control the $(k,\omega)$-plane singular features of the $\sigma =\uparrow,\downarrow$ one-electron spectral functions of the 1D Hubbard model at finite
Externí odkaz:
http://arxiv.org/abs/1605.09620
Zero energy modes in a superconductor with ferromagnetic adatom chains and quantum phase transitions
Autor:
Cadez, T., Sacramento, P. D.
Publikováno v:
Journal of Physics: Condensed Matter 28, 495703 (2016)
We study Majorana zero energy modes (MZEM) that occur in a s-wave superconducting surface, at the ends of a ferromagnetic (FM) chain of adatoms, in the presence of Rashba spin-orbit interaction (SOI) considering both non self-consistent and self-cons
Externí odkaz:
http://arxiv.org/abs/1506.07909
Publikováno v:
Phys. Rev. Lett. 112, 150402, (2014)
An exact analytical solution is derived for the wavefunction of an electron in a one-dimensional moving quantum dot in a nanowire, in the presence of time-dependent spin-orbit coupling. For cyclic evolutions we show that the spin of the electron is r
Externí odkaz:
http://arxiv.org/abs/1312.7254
Publikováno v:
New J. Phys. 15, 013029 (2013)
An exact solution is derived for the wave function of an electron in a semiconductor quantum wire with spin-orbit interaction and driven by external time dependent harmonic confining potential. The formalism allows analytical expressions for various
Externí odkaz:
http://arxiv.org/abs/1208.5359
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