76 citations · 635 across the 44 of their papers we have counts for
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Quantum Phase Transitions in 2d Quantum Liquids
Adriaan M. J. Schakel
These lectures provide a pedagogical introduction to the theory of continuous quantum phase transitions. Various two-dimensional condensed matter systems, such as a superconducting…
On the Description of Quantum Vortices in Superfluid Films
Joerg P. Kottmann, Adriaan M. J. Schakel
The dynamics of vortices in a superfluid film at the absolute zero of temperature is studied. The quantum-mechanical, i.e., ``first-quantized'' description is compared to a recentl…
Derivative Expansion of One-Loop Effective Energy of Stiff Membranes with Tension
M. E. S. Borelli, H. Kleinert, Adriaan M. J. Schakel
With help of a derivative expansion, the one-loop corrections to the energy functional of a nearly flat, stiff membrane with tension due to thermal fluctuations are calculated in t…
Boulevard of Broken Symmetries
Adriaan M. J. Schakel
Effective theories of quantum liquids (superconductors and superfluids of various types) are derived starting from microscopic models at the absolute zero of temperature. Special c…
Quantum Field Theory of Vortices in Superfluid Films
Joerg P. Kottmann, Adriaan M. J. Schakel
A quantum field theory, consisting of the effective action of sound waves linearly coupled to a Chern-Simons term, is proposed to describe the dynamics of vortices in a superfluid…