activity
20242026
most citedGate-tunable Josephson diode effect in Rashba spin-orbit coupled quantum dot junctions

47 citations · 68 across the 6 of their papers we have counts for

collaborators

7 papers

cond-mat.mes-hall2026

Flux- and tunnel-parity-controlled Josephson nonreciprocity from singlet-triplet competition in a parallel double quantum dot

Debika Debnath, Fernando Dominguez, Patrik Recher

Nonreciprocal supercurrents in interacting nanostructures can arise when the positive and negative critical currents probe inequivalent portions of a phase-dependent many-body spec…

cond-mat.supr-con2026

Supercurrent detection and manipulation of topological phase transitions in Shiba-Majorana hybrid systems

Debika Debnath, Ioannis Ioannidis, Paramita Dutta +2

The non-Abelian statistics of Majorana zero modes has inspired numerous proposals for their detection and manipulation in topological superconductors. Implementations based on magn…

cond-mat.supr-con2025★ 5 cited

Spin polarization and diode effect in thermoelectric current through altermagnet-based superconductor heterostructures

Debika Debnath, Arijit Saha, Paramita Dutta

The recent advent of a new class of magnetic material named as {\it altermagnet} (AM), characterized by a combination of momentum-dependent spin splitting with zero net magnetizati…

cond-mat.supr-con2025

Superconducting order parameter in aperiodic binary systems

Sougata Biswas, Debika Debnath, Paramita Dutta

Recent discovery of the superconducting ground state in systems lacking perfect periodicity but with long-range ordering has opened up an exciting new avenue for superconductivity…

cond-mat.mes-hall2025★ 5 cited

Floquet-engineered diode performance in a Majorana-quantum dot Josephson junction

Koustav Roy, Gourab Paul, Debika Debnath +2

We study nonreciprocal signatures of Josephson current (JC) in a quantum dot (QD)-based Josephson junction (JJ) that comprises of two periodically driven Kitaev chains (KCs) couple…

cond-mat.supr-con2024★ 11 cited

Field-free Josephson diode effect in interacting chiral quantum dot junctions

Debika Debnath, Paramita Dutta

We investigate chiral quantum dot (QD)-based Josephson junction and show the correlation-induced Josephson diode effect (JDE) in it. The presence of electron-electron interaction s…

cond-mat.supr-con2024★ 47 cited

Gate-tunable Josephson diode effect in Rashba spin-orbit coupled quantum dot junctions

Debika Debnath, Paramita Dutta

We theoretically explore Josephson diode effect (JDE) in superconductor/quantum dot (QD)/superconductor junction in the presence of a magnetic field and Rashba spin-orbit interacti…