427 citations · 771 across the 18 of their papers we have counts for
18 papers
Trigonal Quasicrystalline States in Rotated Double Moiré Superlattices
J. A. Crosse, Pilkyung Moon
We study the lattice configuration and electronic structure of a double moiré superlattice, which is composed of a graphene layer encapsulated by two other layers in a way such tha…
Faraday rotations, ellipticity and circular dichroism in the magneto-optical spectrum of moiré superlattices
J. A. Crosse, Pilkyung Moon
We study the magneto-optical conductivity of a number of Van der Waals heterostructures, namely, twisted bilayer graphene, AB-AB and AB-BA stacked twisted double bilayer graphene a…
Strong geometry dependence of the Casimir force between interpenetrated rectangular gratings
Mingkang Wang, L. Tang, C. Y. Ng +6
Quantum fluctuations give rise to Casimir forces between two parallel conducting plates, the magnitude of which increases monotonically as the separation decreases. By introducing…
Quasicrystalline electronic states in twisted bilayers and the effects of interlayer and sublattice symmetries
J. A. Crosse, Pilkyung Moon
We study the electronic structure of quasicrystals composed of incommensurate stacks of atomic layers. We consider two systems: a pair of square lattices with a relative twist angl…
Hofstadter butterfly and the quantum Hall effect in twisted double bilayer graphenes
J. A. Crosse, Naoto Nakatsuji, Mikito Koshino +1
We study the energy spectrum and quantum Hall effects of the twisted double bilayer graphene in uniform magnetic field. We investigate two different arrangements, AB-AB and AB-BA,…
Mapping the twist angle and unconventional Landau levels in magic angle graphene
Aviram Uri, Sameer Grover, Yuan Cao +10
The emergence of flat electronic bands and of the recently discovered strongly correlated and superconducting phases in twisted bilayer graphene crucially depends on the interlayer…
Casimir-Polder Shift and Decay Rate in the Presence of Nonreciprocal Media
Sebastian Fuchs, J. A. Crosse, Stefan Yoshi Buhmann
We calculate the Casimir-Polder frequency shift and decay rate for an atom in front of a nonreciprocal medium by using macroscopic quantum electrodynamics. The results are a genera…
Theory of topological insulator waveguides: polarization control and the enhancement of the magneto-electric effect
J. A. Crosse
Topological insulators subject to a time-symmetry-breaking perturbation are predicted to display a magneto-electric effect that causes the electric and magnetic induction fields to…
The Electromagnetic Green's Function for Layered Topological Insulators
J. A. Crosse, Sebastian Fuchs, Stefan Yoshi Buhmann
The dyadic Green's function of the inhomogeneous vector Helmholtz equation describes the field pattern of a single frequency point source. It appears in the mathematical descriptio…
Optical properties of topological insulator Bragg gratings: Faraday rotation enhancement for TM polarized light at large incidence angles
J. A. Crosse
Using the transfer matrix formalism, we study the transmission properties of a Bragg grating constructed from a layered axionic material. Such a material can be realized by a topol…
Strain dependent conductivity in biased bilayer graphene
J. A. Crosse
Intrinsic bilayer graphene is a gapless semimetal. Under the application of a bias field it becomes a semiconductor with a direct band gap that is proportional to the applied field…
Large displacement strain theory and its application to graphene
J. A. Crosse
Under the application of a force, a material will deform and, hence, the crystal lattice will experience strain. This induced strain will alter the electronic properties of the mat…
Theory of low power ultra-broadband terahertz sideband generation in bi-layer graphene
J. A. Crosse, Xiaodong Xu, Mark S. Sherwin +1
In a semiconductor illuminated by a strong terahertz field, optically excited electron-hole pairs can recombine to emit light in a broad frequency comb evenly spaced by twice the t…
Quantum coherence induced second plateau in high-sideband generation
J. A. Crosse, Ren-Bao Liu
Optically excited electron-hole pairs, driven by a strong terahertz (THz) field, create high-sidebands in the optical spectrum. The sideband spectrum exhibits a 'plateau' up to a c…
Coincident count rates in absorbing dielectric media
J. A. Crosse, Stefan Scheel
A study of the effects of absorption on the nonlinear process of parametric down conversion is presented. Absorption within the nonlinear medium is accounted for by employing the f…
Thermal Casimir-Polder shifts in Rydberg atoms near metallic surfaces
J. A. Crosse, Simen Å. Ellingsen, Kate Clements +2
The Casimir-Polder (CP) potential and transition rates of a Rydberg atom above a plane metal surface at finite temperature are discussed. As an example, the CP potential and transi…
Effective nonlinear Hamiltonians in dielectric media
J. A. Crosse, Stefan Scheel
We derive an effective Hamiltonian for the nonlinear process of parametric down conversion in the presence of absorption. Based upon the Green function method for quantizing the el…
Atomic multipole relaxation rates near surfaces
J. A. Crosse, Stefan Scheel
The spontaneous relaxation rates for an atom in free space and close to an absorbing surface are calculated to various orders of the electromagnetic multipole expansion. The sponta…