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quant-ph2026
The formation of entangled Schrödinger cat-like states in the process of spontaneous parametric down-conversion
Ranjit Singh, Alexander E. Teretenkov
We investigate entangled Schrödinger cat-like states (SCLSs) in degenerate and non-degenerate spontaneous parametric down-conversion (SPDC) with a fully quantized, depleted pump.…
quant-ph2025
Sub-Poissonian Light in a Waveguide Kerr-medium
R. Singh, A. E. Teretenkov, A. V. Masalov
Waveguides on a chip represent a new medium for implementing nonlinear optical transformations of light. Modern chip waveguides are attractive due to their…
quant-ph2025
Repeated temperature measurements in quantum thermodynamics
N. M. Gerasimov, A. E. Teretenkov
In this work, we model the temperature measurement as a transformation of the arbitrary state into the Gibbs state. We start with a general formalism of ansatz-posteriors, which in…