Stefanos Papanikolaou

Beyond scaling: The average avalanche shape (2009)

Papanikolaou, Stefanos, Bohn, Felipe, Sommer, Rubem L., Durin, Gianfranco, Zapperi, Stefano, Sethna, James P.

Universality, scaling, and the renormalization group claim to predict all behavior on long length and time scales asymptotically close to critical points. In practice, large simulations and heroic...

First- order versus unconventional phase transitions in three-dimensional dimer models (2009)

Papanikolaou, Stefanos, Betouras, Joseph J.

We study the phase transition between the Coulomb liquid and the columnar crystal in the 3D classical dimer model, which was suggested to be continuous in the O(3) universality class. In addition to...

Universality of liquid-gas Mott transitions at finite temperatures (2007)

Papanikolaou, Stefanos, Fernandes, Rafael Monteiro, Fradkin, Eduardo, Phillips, Philip W., Schmalian, Joerg, Sknepnek, Rastko

We explain in a consistent manner the set of seemingly conflicting experiments on the finite temperature Mott critical point, and demonstrate that the Mott transition is in the Ising universality...

Topological phases and topological entropy of two-dimensional systems with finite correlation length (2007)

Papanikolaou, Stefanos, Raman, Kumar S., Fradkin, Eduardo

We elucidate the topological features of the entanglement entropy of a region in two dimensional quantum systems in a topological phase with a finite correlation length $\xi$. Firstly, we suggest...

Quantum criticality, lines of fixed points, and phase separation in doped two-dimensional quantum dimer models (2006)

Papanikolaou, Stefanos, Luijten, Erik, Fradkin, Eduardo

We study phase diagrams of a class of doped quantum dimer models on the square lattice with ground-state wave functions whose amplitudes have the form of the Gibbs weights of a classical doped dimer...