This post is a self-contained guide to the notation and main calculation in the paper Structured-to-generic crossover at arbitrary-order excep...
This self-contained post derives the Petermann factor, relates it to phase rigidity, and explains the robustness statement used in the paper.
This self-contained post develops phase rigidity from the elementary idea of an eigenvector overlap. No earlier post in the series is required.
This is Part II of the project guide, but it is written to be read independently. A matrix is non-Hermitian when $H\neq H^\dagger$. Such a mat...
This is Part I of a five-part guide to the paper Structured-to-generic crossover at arbitrary-order exceptional points in supersymmetric $\mat...
A daily reference guide to Jharkhand university officers, authorities, committees, appointments, finance, grievances, colleges, and the State ...
This final post closes the series on information dynamics in quantum harmonic systems. The paper studied two complementary toy models:
This post continues the complexity discussion, but now the model changes. The earlier posts studied two coupled oscillators, where synchroniza...
This is Part V of the coupled-oscillator series. In Part IV, we saw that synchronization and mutual information can separate: one measures coo...
This is Part IV of the coupled-oscillator series. The previous posts developed the Hamiltonian, the Gaussian wavefunction, and the quench/stea...
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