74 citations · 188 across the 17 of their papers we have counts for
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Quantum Information-Theoretic Analysis of Optical Fiber Sensing via Stimulated Brillouin Scattering
Kiran Adhikari, Janis Nötzel
Stimulated Brillouin scattering (SBS) is a powerful mechanism for distributed sensing in optical fibers, as the Brillouin response is highly sensitive to local material parameters.…
Pseudo Entropy in Quantum Spin Chains: from Integrability to Chaos
Tara Bahadur Rana, Yadav Raj Dahal, Kiran Adhikari
In this work, we study pseudo entropy and spectral dynamics in quantum spin chains (Heisenberg XXZ model and the mixed-field Ising model) to investigate whether they can serve as d…
Certified Fidelity Susceptibility from Classical Shadows
Kiran Adhikari
Fidelity susceptibility is a useful probe of quantum phase transitions and quantum metrology, but its direct evaluation on a quantum device is challenging. By integrating Krylov-su…
Quantum-Limited Blind Source Separation of Classical Light
Janis Nötzel, Kiran Adhikari
Using the framework of quantum multiparameter estimation, we study the problem of separating independent thermal optical sources mixed by an unknown passive linear transformation,…
Pseudo entropy and topological phases of matter
Pramod Kamal Kharel, Manghang Limbu, Nabaraj Khatri +2
Entanglement entropy has proven to be a powerful probe of phenomena such as quantum chaos and phase transitions. Pseudo entropy is a recently proposed time-like generalization of a…
Cosmological Pseudo-Entropy
Manghang Limbu, Pramod Kamal Kharel, Rohit Bhattarai +1
We study pseudo entropy , a recent generalization of entanglement entropy, for scalar cosmological perturbations in de Sitter space with sound speed $0.024 \leq c_s \l…
Fundamental Limits of Eavesdropper Detection and Localization in Optical Fiber via Stimulated Brillouin Scattering
Kiran Adhikari, Janis Nötzel
Recent work investigated the use of Stimulated Brillouin Scattering (SBS) to measure changes in fiber parameters, thereby enhancing the security of a Quantum Key Distribution (QKD)…