6 citations · 8 across the 13 of their papers we have counts for
13 papers
Weighted Quantum Signal Processing: Low-Depth Polynomial Approximation with Applications to Kolmogorov-Arnold Networks
Rohit Sarma Sarkar, Rupayan Bhattacharjee, Elias F. Combarro +5
Quantum Signal Processing is a powerful quantum framework for generating and approximating univariate polynomials. However, QSP is often limited by circuit-depth bottlenecks and pa…
An Analytical Approach to Design Space Exploration for Cavity-Mediated Quantum State Transfer in Multi-core Architectures
Biel Pons Zaragoza, Junaid Khan, Rohit Sarma Sarkar +4
In multi-core quantum computing architectures, waveguide-mediated interconnects are essential for facilitating fast, high-fidelity quantum state transfer between qubits located in…
Quantum Circuit Pruning: Improving Fidelity via Compilation-Aware Circuit Approximation
Pau Escofet, Santiago Rodrigo, Rohit Sarma Sarkar +3
This work presents a routing-aware pruning strategy for quantum circuits executed on Noisy Intermediate-Scale Quantum (NISQ) devices. We propose a method to remove parametric contr…
Quantum circuit model for continuous-time quantum walks on random graphs
Sabyasachi Chakraborty, Rohit Sarma Sarkar, Sonjoy Majumder +1
Quantum-circuit implementations of continuous-time quantum walks (CTQWs) can provide an efficient route to model graph-based algorithms. However, constructing circuits that faithfu…
A Fully Device-Independent Ternary Quantum Key Distribution Protocol Based on the Impossible Colouring Game
Aniket Basak, Rajeet Ghosh, Rohit Sarma Sarkar +2
We propose a Ternary Fully Device-Independent Quantum Key Distribution (TFDIQKD) protocol based on the two-party Impossible Colouring pseudo-telepathy game, utilizing maximally ent…
Scalable quantum circuit simulation of a chaotic Ising chain
Sabyasachi Chakraborty, Rohit Sarma Sarkar, Sonjoy Majumder
The recent advancements in out-of-time-ordered correlator (OTOC) measurements have provided a promising pathway to explore quantum chaos and information scrambling. However, despit…
Scalable quantum circuits for exponential of Pauli strings and Hamiltonian simulations
Rohit Sarma Sarkar, Sabyasachi Chakraborty, Bibhas Adhikari
In this paper, we design quantum circuits for the exponential of scaled -qubit Pauli strings using single-qubit rotation gates, Hadamard gate, and CNOT gates. A key result we de…
A quantum neural network framework for scalable quantum circuit approximation of unitary matrices
Rohit Sarma Sarkar, Bibhas Adhikari
In this paper, we develop a Lie group theoretic approach for parametric representation of unitary matrices. This leads to develop a quantum neural network framework for quantum cir…
Quantum circuit model for discrete-time three-state quantum walks on Cayley graphs
Rohit Sarma Sarkar, Bibhas Adhikari
We develop qutrit circuit models for discrete-time three-state quantum walks on Cayley graphs corresponding to Dihedral groups and the additive groups of integers modulo any…
Discrete-time quantum walks on Cayley graphs of Dihedral groups using generalized Grover coins
Rohit Sarma Sarkar, Bibhas Adhikari
In this paper we study discrete-time quantum walks on Cayley graphs corresponding to Dihedral groups, which are graphs with both directed and undirected edges. We consider the walk…
Scalable quantum circuits for -qubit unitary matrices
Rohit Sarma Sarkar, Bibhas Adhikari
This work presents an optimization-based scalable quantum neural network framework for approximating -qubit unitaries through generic parametric representation of unitaries, whi…
Limit theorems and localization of three state quantum walks on a line defined by generalized Grover coins
Amrita Mandal, Rohit Sarma Sarkar, Shantanav Chakraborty +1
In this article, we undertake a detailed study of the limiting behavior of a three-state discrete-time quantum walk on one dimensional lattice with generalized Grover coins. Two li…
Periodicity of lively quantum walks on cycles with generalized Grover coin
Rohit Sarma Sarkar, Amrita Mandal, Bibhas Adhikari
In this paper we extend the study of three state lively quantum walks on cycles by considering the coin operator as a linear sum of permutation matrices, which is a generalization…