Delta Institute for Theoretical Physics

Science case for the Einstein telescope

The Einstein Telescope (ET), a proposed European ground-based gravitational-wave detector of third-generation, is an evolution of second-generation detectors such as Advanced LI...

d-dimensional unitarity cut method

We develop a unitarity method to compute one-loop amplitudes with massless propagators in d=4-2*epsilon dimensions. We compute double cuts of the loop amplitudes via a decomposi...

New Class of Non-Abelian Spin-Singlet Quantum Hall States

We present a new class of non-abelian spin-singlet quantum Hall states, generalizing Halperin's abelian spin-singlet states and the Read-Rezayi non-abelian quantum Hall states f...

Wavefunctions for topological quantum registers

Parafermion statistics and application to non-Abelian quantum Hall states

The (exclusion) statistics of parafermions is used to study degeneracies of quasiholes over the paired (or in general clustered) quantum Hall states. Focus is on the Z_k and su(...

Charge screening in the Higgs phase of Chern-Simons electrodynamics

Though screened at large distances, a point-like electric charge can still participate in a long-range electromagnetic interaction in the Higgs phase, namely that with the Aharo...

Non-Abelian Quantum Hall States—Exclusion Statistics, K-Matrices, and Duality