Hawking fragmentation and Hawking attenuation in Weyl semimetals
We study black and white hole analogs in Weyl semimetals with inhomogeneous nodal tilts.
We study how the presence of a microscopic lattice, giving rise to low-energy fermion …
We study how the presence of a microscopic lattice, giving rise to low-energy fermion …
Tabletop Tunable Chiral Photonic Emitter
The increasing interest in chiral light stems from its spiral trajectory along the propagation
direction, facilitating the interaction between different polarization states of light and matter …
direction, facilitating the interaction between different polarization states of light and matter …
Analogue Hawking radiation as a tunneling in a two-level PT-symmetric system
In light of a general scenario of a two-level non-Hermitian PT-symmetric Hamiltonian, we
apply the tetrad-based method to analyze the possibility of analogue Hawking radiation. We …
apply the tetrad-based method to analyze the possibility of analogue Hawking radiation. We …
Anisotropic optics and gravitational lensing of tilted Weyl fermions
We show that tilted Weyl semimetals with a spatially varying tilt of the Weyl cones provide a
platform for studying analogs to problems in anisotropic optics as well as curved spacetime …
platform for studying analogs to problems in anisotropic optics as well as curved spacetime …
Thermalization by a synthetic horizon
Synthetic horizons in models for quantum matter provide an alternative route to explore
fundamental questions of modern gravitational theory. Here we apply these concepts to the …
fundamental questions of modern gravitational theory. Here we apply these concepts to the …
Horizon physics of quasi-one-dimensional tilted Weyl cones on a lattice
To simulate the dynamics of massless Dirac fermions in curved space-times with one, two,
and three spatial dimensions, we construct tight-binding Hamiltonians with spatially varying …
and three spatial dimensions, we construct tight-binding Hamiltonians with spatially varying …
Fractal nodal band structures
Non-Hermitian systems exhibit interesting band structures, where novel topological
phenomena arise from the existence of exceptional points at which eigenvalues and …
phenomena arise from the existence of exceptional points at which eigenvalues and …
Duality between the quantum inverted harmonic oscillator and inverse square potentials
In this paper we show how the quantum mechanics of the inverted harmonic oscillator (IHO)
can be mapped to the quantum mechanics of a particle in a super-critical inverse square …
can be mapped to the quantum mechanics of a particle in a super-critical inverse square …
Analogue Hawking radiation as a tunneling in a two-level -symmetric system
B Bagchi, R Ghosh, S Sen - arxiv preprint arxiv:2304.14174, 2023 - arxiv.org
In the light of a general scenario of a two-level non-Hermitian $\mathcal {PT} $-symmetric
Hamiltonian we apply the tetrad-based method to analyze the possibility of analogue …
Hamiltonian we apply the tetrad-based method to analyze the possibility of analogue …
A weak pseudo-Hermitian two band model, artificial Hawking radiation and tunneling
B Bagchi, S Sen - arxiv preprint arxiv:2108.11648, 2021 - arxiv.org
We examine the possibility of artificial Hawking radiation by proposing a non-PT-symmetric
weakly pseudo-Hermitian two band model containing a tilting parameter. We also determine …
weakly pseudo-Hermitian two band model containing a tilting parameter. We also determine …