3 papers
quant-ph2026
Trajectories of Critical Unstable Qubits in and on the Bloch Sphere
Snehit Panghal, Apostolos Pilaftsis
We extend previous studies on a novel class of unstable two-level systems which were called Critical Unstable Qubits (CUQs). In an appropriately defined co-decaying frame, the CUQs…
quant-ph2026
Critical Unstable Qubits in Particle Physics
Dimitrios Karamitros, Thomas McKelvey, Snehit Panghal +1
We study in detail the dynamics of unstable two-level quantum systems by adopting the Bloch-vector representation. We identify a novel class of critical scenarios in which the so-c…
hep-ph2023
Loop-induced Higgs decays in two Higgs doublet scenarios: some observations
Snehit Panghal, Biswarup Mukhopadhyaya
We study the decay of three neutral Higgs bosons into γγ and Zγ in the four major types of two Higgs doublet models with CP conserved. Particular focus is made on the possibility o…