4 papers
Quantum-classical diagnostics and Bohmian inequivalence for higher time-derivative Hamiltonians
Sanjib Dey, Andreas Fring
We develop a Bohmian analysis of a two-dimensional ghost Hamiltonian and its mapping to the degenerate Pais-Uhlenbeck model. Using Gaussian wavepackets, we derive the corresponding…
Improved coherence time of a non-Hermitian qubit in a -symmetric Environment
Duttatreya, Ipsika Mohanty, Sanjib Dey
Quantum computing's potential for exponential speedup is fundamentally limited by decoherence, a phenomenon arising from environmental interactions. Non-Hermitian quantum mechanics…
Probing Planck scale effects on absolute mass limit in neutrino flavor evolution
Kartik Joshi, Sanjib Dey, Satyajit Jena
This work explores how the generalized uncertainty principle, a theoretical modification of the Heisenberg uncertainty principle inspired by quantum gravity, affects neutrino flavo…
Enhanced quantum phase estimation with -deformed nonideal nonclassical light
Duttatreya, Sanjib Dey
We investigate quantum phase estimation in a Mach-Zehnder interferometer using q-deformed photon states, including q-coherent and q-cat states, which model realistic deviations fro…