91 citations · 530 across the 19 of their papers we have counts for
20 papers
Cluster functional renormalization group and absence of a bilinear spin liquid in the --Heisenberg model
Dietrich Roscher, Nico Gneist, Michael M. Scherer +2
The pseudofermion functional renormalization group (pf-FRG) has been put forward as a semi-analytical scheme that, for a given microscopic spin model, allows to discriminate whethe…
Tensor model near six dimensions: fixed points and conformal windows from four loops
John A. Gracey, Igor F. Herbut, Dietrich Roscher
In search of non-trivial field theories in high dimensions, we study further the tensor representation of the -symmetric field theory introduced by Herbut and Janssen (…
Critical field theory near six dimensions beyond one loop
Dietrich Roscher, Igor F. Herbut
A tensorial representation of field theory introduced in Phys. Rev. D. 93, 085005 (2016) is studied close to six dimensions, with an eye towards a possible realization of an…
Phenomenology of a First Order Dark State Phase Transition
Dietrich Roscher, Sebastian Diehl, Michael Buchhold
Dark states are stationary states of a dissipative, Lindblad-type time evolution with zero von Neumann entropy, therefore representing examples of pure, steady quantum states. Non-…
Functional renormalization group approach to SU(N) Heisenberg models: Momentum-space RG for the large-N limit
Dietrich Roscher, Finn Lasse Buessen, Michael M. Scherer +2
In frustrated magnetism, making a stringent connection between microscopic spin models and macroscopic properties of spin liquids remains an important challenge. A recent step towa…
Functional renormalization group approach to SU(N) Heisenberg models: Real-space RG at arbitrary N
Finn Lasse Buessen, Dietrich Roscher, Sebastian Diehl +1
The pseudofermion functional renormalization group (pf-FRG) is one of the few numerical approaches that has been demonstrated to quantitatively determine the ordering tendencies of…