7 papers
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…
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…
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-…
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…
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…
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…