112 citations · 160 across the 3 of their papers we have counts for
7 papers
Percolation quantum phase transitions in diluted magnets
Thomas Vojta, Joerg Schmalian
We show that the interplay of geometric criticality and quantum fluctuations leads to a novel universality class for the percolation quantum phase transition in diluted magnets. Al…
Quantum Griffiths effects in itinerant Heisenberg magnets
Thomas Vojta, Joerg Schmalian
We study the influence of quenched disorder on quantum phase transitions in itinerant magnets with Heisenberg spin symmetry, paying particular attention to rare disorder fluctuatio…
Infinite-randomness critical point in the itinerant quantum antiferromagnet
Rastko Sknepnek, Thomas Vojta
We study the quantum phase transition in the three-dimensional disordered itinerant antiferromagnet by Monte-Carlo simulations of the order-parameter field theory. We find strong e…
The Hartree-Fock based diagonalization - an efficient algorithm for the treatment of interacting electrons in disordered solids
Michael Schreiber, Thomas Vojta
The Hartree-Fock based diagonalization is a computational method for the investigation of the low-energy properties of correlated electrons in disordered solids. The method is rela…
Quantum phase transitions
Thomas Vojta
Phase transitions which occur at zero temperature when some non-thermal parameter like pressure, chemical composition or magnetic field is changed are called quantum phase transiti…
Crossover from interaction induced localization to delocalization in disordered electron systems
Frank Epperlein, Thomas Vojta, Michael Schreiber
We numerically investigate the transport properties of interacting spinless electrons in disordered systems. We use an efficient method which is based on the diagonalization of the…