29 citations · 138 across the 10 of their papers we have counts for
10 papers
Topological magic response in quantum spin chains
Ritu Nehra, Poetri Sonya Tarabunga, Martina Frau +3
Topological matter provides natural platforms for robust, non-local information storage, central to quantum error correction. Yet, while the relation between entanglement and topol…
Controlling measurement-induced phase transitions with tunable detector coupling
Ritu Nehra, Alessandro Romito, Dganit Meidan
We study the evolution of a quantum many-body system driven by two competing measurements, which induces a topological entanglement transition between two distinct area law phases.…
Anomalous dynamical response of non-Hermitian topological phases
Ritu Nehra, Dibyendu Roy
Composite topological phases with intriguing topology like Mbius strips emerge in sublattice symmetric non-Hermitian systems due to spontaneous breaking of time-reversal symme…
Topology of multipartite non-Hermitian one-dimensional systems
Ritu Nehra, Dibyendu Roy
The multipartite non-Hermitian Su-Schrieffer-Heeger model is explored as a prototypical example of one-dimensional systems with several sublattice sites for unveiling intriguing in…
Transmission in a Fano-Anderson chain with a topological defect
Ritu Nehra, Ajith Ramachandran, Sebastian Wüster +1
The Fano-Anderson chain consists of a linear lattice with a discrete side-unit, and exhibits Fano-resonant scattering due to coupling between the discrete states of the side-unit w…
Drive-induced many-body localization and coherent destruction of Stark many-body localization
Devendra Singh Bhakuni, Ritu Nehra, Auditya Sharma
We study the phenomenon of many-body localization (MBL) in an interacting system subjected to a combined DC as well as a square wave AC electric field. First, the condition for the…
Flat bands and entanglement in the Kitaev ladder
Ritu Nehra, Devendra Singh Bhakuni, Ajith Ramachandran +1
We report the existence of \emph{flat bands} in a p-wave superconducting Kitaev ladder. We identify two sets of parameters for which the Kitaev ladder sustains flat bands. These fl…
Transport in a long-range Kitaev ladder: role of Majorana and subgap Andreev states
Ritu Nehra, Auditya Sharma, Abhiram Soori
We study local and non-local transport across a two-leg long-range Kitaev ladder connected to two normal metal leads. We focus on the role of the constituent Majorana fermions and…
Enhancement of crossed Andreev reflection in a Kitaev ladder connected to normal metal leads
Ritu Nehra, Devendra Singh Bhakuni, Auditya Sharma +1
We study nonlocal transport in a two-leg Kitaev ladder connected to two normal metals. The coupling between the two legs of the ladder when the legs are maintained at a (large) sup…
Many-body entanglement in a topological chiral ladder
Ritu Nehra, Devendra Singh Bhakuni, Suhas Gangadharaiah +1
We find that the topological phase transition in a chiral ladder is characterized by dramatic signatures in many body entanglement entropy between the legs, close to half-filling.…