activity
20242026
most citedAharonov-Bohm interference and the evolution of phase jumps in fractional quantum Hall Fabry-Perot interferometers based on bi-layer graphene

15 citations · 33 across the 7 of their papers we have counts for

collaborators

7 papers

cond-mat.mes-hall2026

Van Hove singularity-driven giant Nernst signal in twisted double bilayer graphene

Ujjal Roy, Monosij Roy, Unmesh Ghorai +8

Twisted graphene layers host van Hove singularities (vHSs), peaks in the electronic density of states, thought to drive exotic phases in moiré materials, but their effect on therma…

cond-mat.mes-hall2026

Selective braiding of different anyons in the even-denominator fractional quantum Hall effect

Jehyun Kim, Amit Shaer, Ravi Kumar +6

Even-denominator quantum Hall states can host several types of anyons with distinct exchange statistics. Depending on the anyon type, exchanging two quasiparticles can impart a pha…

cond-mat.mes-hall2025

Orbitally Tuned Composite-Fermion Pairing Transitions in Bilayer Graphene

Ravi Kumar, Tomer Firon, André Haug +6

The effective interaction between composite fermions, set entirely by the Coulomb potential and the underlying electronic Landau level orbitals, can stabilize exotic fractional qua…

cond-mat.mes-hall2025★ 2 cited

Interaction-driven quantum phase transitions between topological and crystalline orders of electrons

André Haug, Ravi Kumar, Tomer Firon +5

Topological and crystalline orders of electrons both benefit from enhanced Coulomb interactions in partially filled Landau levels. In bilayer graphene (BLG), the competition betwee…

cond-mat.mes-hall2024★ 4 cited

Aharonov-Bohm Interference in Even-Denominator Fractional Quantum Hall States

Jehyun Kim, Himanshu Dev, Amit Shaer +9

Position exchange of non-Abelian anyons affects the quantum state of their system in a topologically-protected way. Their expected manifestations in even-denominator fractional qua…

cond-mat.mes-hall2024★ 12 cited

Quarter- and half-filled quantum Hall states and their topological orders revealed by daughter states in bilayer graphene

Ravi Kumar, André Haug, Jehyun Kim +8

Even-denominator fractional quantum Hall states are promising candidates for fault-tolerant quantum computing due to their underlying non-Abelian topological orders. However, the t…

cond-mat.mes-hall2024★ 15 cited

Aharonov-Bohm interference and the evolution of phase jumps in fractional quantum Hall Fabry-Perot interferometers based on bi-layer graphene

Jehyun Kim, Himanshu Dev, Ravi Kumar +8

Quasi-particles in fractional quantum Hall states are collective excitations that carry fractional charge and anyonic statistics. While the fractional charge affects semi-classical…