activity
20242026
collaborators

7 papers

quant-ph2026

Quantum cryptography compatible with noisy intermediate-scale quantum devices based on Parrondo dynamics in discrete-time quantum walks

Aditi Rath, Dinesh Kumar Panda, Colin Benjamin

Compatibility with noisy intermediate-scale quantum (NISQ) devices is crucial for the realistic implementation of quantum cryptographic protocols. We investigate a cryptographic sc…

quant-ph2026

Quantum walks reveal topological flat bands, robust edge states and topological phase transitions in cyclic graphs

Dinesh Kumar Panda, Colin Benjamin

Topological phases, edge states, and flat bands in synthetic quantum systems are a key resource for topological quantum computing and noise-resilient information processing. We int…

cond-mat.str-el2026

Fractional Topological Phases, Flat Bands, and Robust Edge States on Finite Cyclic Graphs via Single-Coin Split-Step Quantum Walks

Dinesh Kumar Panda, Colin Benjamin

We report the first realization of a fractional topological phase in a fully unitary, noninteracting discrete-time quantum walk implemented on finite cyclic graphs. Using a single-…

quant-ph2025

Controlling quantum chaos via Parrondo strategies on noisy intermediate-scale quantum hardware

Aditi Rath, Dinesh Kumar Panda, Colin Benjamin

Advancements in Noisy Intermediate-Scale Quantum (NISQ) computing are steadily pushing these systems toward outperforming classical supercomputers on specific, well-defined computa…

quant-ph2025

Phase vs coin vs position disorder as a probe for the resilience and revival of single particle entanglement in cyclic quantum walks

Dinesh Kumar Panda, Colin Benjamin

Quantum states exhibiting single-particle entanglement (SPE) can encode and process quantum information more robustly than their multi-particle analogs. Understanding the vulnerabi…

quant-ph2024

Designing three-way entangled and nonlocal two-way entangled single particle states via alternate quantum walks

Dinesh Kumar Panda, Colin Benjamin

Entanglement with single-particle states is advantageous in quantum technology because of their ability to encode and process information more securely than their multi-particle an…