46 citations · 138 across the 8 of their papers we have counts for
8 papers
Multi-qubit quantum computing using discrete-time quantum walks on closed graphs
Prateek Chawla, Shivani Singh, Aman Agarwal +2
Universal quantum computation can be realised using both continuous-time and discrete-time quantum walks. We present a version based on single particle discrete-time quantum walk t…
Quantum walks and Dirac cellular automata on a programmable trapped-ion quantum computer
C. Huerta Alderete, Shivani Singh, Nhung H. Nguyen +5
The quantum walk formalism is a widely used and highly successful framework for modeling quantum systems, such as simulations of the Dirac equation, different dynamics in both the…
Quantum circuits for the realization of equivalent forms of one-dimensional discrete-time quantum walks on near-term quantum hardware
Shivani Singh, Cinthia H. Alderete, Radhakrishnan Balu +3
Quantum walks are a promising framework for developing quantum algorithms and quantum simulations. They represent an important test case for the application of quantum computers. H…
Universal quantum computing using single-particle discrete-time quantum walk
Shivani Singh, Prateek Chawla, Anupam Sarkar +1
Quantum walk has been regarded as a primitive to universal quantum computation. By using the operations required to describe the single particle discrete-time quantum walk on a pos…
Quantum walker as a probe for its coin parameter
Shivani Singh, C. M. Chandrashekar, Matteo G. A. Paris
In discrete-time quantum walk (DTQW) the walker's coin space entangles with the position space after the very first step of the evolution. This phenomenon may be exploited to obtai…
Accelerated quantum walk, two-particle entanglement generation and localization
Shivani Singh, Radhakrishnan Balu, Raymond Laflamme +1
We present a scheme to describe the dynamics of accelerating discrete-time quantum walk for one- and two-particle in position space. We show the effect of acceleration in enhancing…
Quantum probes for quantum wells
Ilaria Pizio, Shivani Singh, C. M. Chandrashekar +1
We seek for the optimal strategy to infer the width of an infinite potential wells by performing measurements on the particle(s) contained in the well. In particular, we addres…
Quantum interference and coherence in one-dimensional disordered and localized quantum walk
Shivani Singh, C. M. Chandrashekar
One-dimensional discrete-time quantum walk has played an important role in development of quantum algorithms and protocols for different quantum simulations. The speedup observed i…