27 citations · 27 across the 1 of their papers we have counts for
3 papers
Hole in the 2D Ising Antiferromagnet: Origin of the Incoherent Spectrum
Piotr Wrzosek, Krzysztof Wohlfeld
We develop a "self-avoiding walks" approximation and use it to calculate the spectral function of a single hole introduced into the 2D square lattice Ising antiferromagnet. The obt…
Quantum walk versus classical wave: Distinguishing ground states of quantum magnets by spacetime dynamics
Piotr Wrzosek, Krzysztof Wohlfeld, Damian Hofmann +2
We investigate the wavepacket spreading after a single spin flip in prototypical two-dimensional ferromagnetic and antiferromagnetic quantum spin systems. We find characteristic sp…
From "Weak" to "Strong" Hole Confinement in a Mott Insulator
Krzysztof Bieniasz, Piotr Wrzosek, Andrzej M. Oles +1
We study the problem of a single hole in an Ising antiferromagnet and, using the magnon expansion and analytical methods, determine the expansion coefficients of its wave function…