Coherent Control of Interlayer Vibrations in Bi2Se3 van der Waals Thin-Films

Interlayer vibrations with discrete quantized modes in two-dimensional (2D) materials can be excited by ultrafast light due to the inherent low dimensionality and van der Waals force as a restoring...

Anomalous thermal fluctuation distribution sustains proto-metabolic cycles and biomolecule synthesis

Anomalous thermal fluctuation distribution may reflect transient non-Boltzmann populations of internal quantized modes and favour primordial chemical evolution.

PT symmetry and a dynamical realization of the SU(1, 1) algebra

We show that the elementary modes of the planar harmonic oscillator can be quantized in the framework of quantum mechanics based on pseudo-hermitian Hamiltonians. These quantized modes are demonstrated to act as dynamical structures behind a new Jordan–Schwinger realization of the SU(1, 1) algebra. This analysis complements the conventional Jordan–Schwinger construction of the SU(2) algebra based on hermitian Hamiltonians of a doublet of oscillators.