15 citations · 32 across the 11 of their papers we have counts for
11 papers
Effect of inter-edge interaction in a quantum Hall collider
Amulya Ratnakar, Flavio Ronetti, Benoît Grémaud +4
Fractional quantum Hall (FQH) colliders measure anyon exchange phases via time-domain braiding, but the state exhibits an intriguing negative Fano factor, challenging theor…
Statistical Interaction Driven Thermoelectricity and Violation of Wiedemann-Franz Law
Sampurna Karmakar, Amulya Ratnakar, Sourin Das
Quantum transport anomalies in systems obeying Haldane-Wu fractional exclusion statistics, characterized by the statistical interactions parameter are investigated. We identify…
Elevated Hall Responses as Indicators of Edge Reconstruction
Sampurna Karmakar, Amulya Ratnakar, Sourin Das
We investigate edge reconstruction scenarios in the quantum Hall state, focusing on configurations with upstream and downstream charge and neutral modes. Our analysis shows…
Can Majorana zero modes in quantum Hall edges survive edge reconstruction?
Kishore Iyer, Amulya Ratnakar, Sumathi Rao +1
Parafermion zero modes can be trapped in the domain walls of quantum Hall edges proximitized by superconductors and ferromagnets. The fractional quantum Hall side strip ar…
Dynamic enhancement of conductance in fractional quantum Hall constriction
Sampurna Karmakar, Amulya Ratnakar, Sourin Das
A disparity in the charge of quasi-particle excitations across a tunnel junction can trigger Andreev-like processes, creating an effect similar to that of a step-up transformer. We…
Spontaneous fractional Josephson current from parafermions
Kishore Iyer, Amulya Ratnakar, Aabir Mukhopadyaya +2
We study a parafermion Josephson junction (JJ) comprising a pair of counter-propagating edge modes of two quantum Hall (QH) systems, proximitized by an s-wave superconductor. We sh…
Dimensional crossover in self-organised super-radiant phases of ultra cold atoms inside a cavity
Poornima Shakya, Amulya Ratnakar, Sankalpa Ghosh
We consider a condensate of ultra cold bosonic atoms in a linear optical cavity illuminated by a two-pump configuration where each pump is making different angles with the directio…
Tunneling density of states in Luttinger Liquid in proximity to a superconductor: Effect of non-local interaction
Amulya Ratnakar, Sourin Das
A recent study have shown that it is possible to have enhancement, in contrast to an expected suppression, in tunneling density of states (TDOS) in a Luttinger liquid (LL) which is…
Enhancement in tunneling density of states in Luttinger liquid -- role of non-local interaction
Amulya Ratnakar, Sourin Das
Power law suppression of local electronic tunneling density of states (TDOS) in the zero-energy limit is a hallmark of Luttinger liquid (LL) phase of the interacting 1-D electron s…
Two-particle spectral function for disordered s-wave superconductors: local maps and collective modes
Abhisek Samanta, Amulya Ratnakar, Nandini Trivedi +1
We make the first testable predictions for the local two-particle spectral function of a disordered s-wave superconductor, probed by scanning Josephson spectroscopy (sjs), providin…
Landau level diagram and the continuous rotational symmetry breaking in trilayer graphene
Biswajit Datta, Hitesh Agarwal, Abhisek Samanta +5
The sequence of the zeroth Landau levels (LLs) between filling factors =-6 to 6 in ABA-stacked trilayer graphene (TLG) is unknown because it depends sensitively on the non-unifo…