3 papers
cond-mat.dis-nn2026
Topologically nontrivial multicritical points
Ranjith R Kumar, Pasquale Marra
Recently, the intriguing interplay between topology and quantum criticality has been unveiled in one-dimensional topological chains with extended nearest-neighbor couplings. In the…
cond-mat.str-el2026
Interacting ground states of moiré ladders
Paban Kumar Patra, Ranjith R. Kumar, Yixuan Huang +1
Moiré materials have emerged as a rich platform for exploring strong correlation effects in low dimensions, with twisted bilayer graphene (TBG) as a paradigmatic example. To disti…
quant-ph2025
Topological transition between gapless phases in quantum walks
Ranjith R Kumar, Hideaki Obuse
Topological gapless phases of matter have been a recent interest among theoretical and experimental condensed matter physicists. Fermionic chains with extended nearest neighbor cou…