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Sequential vs. Synchronized Entanglement Swapping: QKD Secret-Key Rate under Optimized Link-Layer Control
Priyam Srivastava, Akshat R. Sabavat, Siddharth Jain +6
Quantum repeater chains build long-distance entanglement for quantum key distribution (QKD) by creating pairs on short links and joining them through entanglement swapping. Because…
Logarithmic Spectral Phase Deformations: Observable Signatures and the Limits of Spontaneous Dephasing
Sridhar Tayur
We study a unitary deformation of the relation between a positive self-adjoint reference Hamiltonian and the generator of phase evolution, \begin{equation*} F_β(H) = H + βH \lo…
First-order and interior-point methods for entanglement detection
Javier Pena, Vikesh Siddhu, Sridhar Tayur
Quantum entanglement lies at the heart of quantum information science, yet its reliable detection in high-dimensional or noisy systems remains a fundamental computational challenge…
Five Starter Problems: Solving Quadratic Unconstrained Binary Optimization Models on Quantum Computers
Arul Mazumder, Sridhar Tayur
This tutorial offers a quick, hands-on introduction to solving Quadratic Unconstrained Binary Optimization (QUBO) models on currently available quantum computers and their simulato…