In Landau gauge QCD the infrared behavior of the propagator of transverse gluons can be analytically determined to be a power law from Dyson–Schwinger equations. This propagator clearly shows positivity violation, indicating the absence of the transverse gluons from the physical spectrum, i.e. gluon confinement. A simple analytic structure for the gluon propagator is proposed capturing all impo...

Relying on preliminary experiments, in this work we design a tunable 850 nm laser based hybrid combination of liquid crystal micro-cell with nanoimprinted grating and an electrically-pumped GaAs half-VCSEL. The optical is challenging due to the inherent tolerances technology, presence metals cavity need for single fundamental extraordinary mode emission over whole tuning range. To ensure proper...

Dissipative capillary discharges form plasma channels which allow for high power laser guiding, enabling efficient electron acceleration in a wakefield accelerator. However, at the low densities required to produce high-energy electrons, order avoid wall damage, lasers need tighter transverse confinement that cannot be achieved by discharge powered Ohmic heating alone. The introduction of an ad...

This study presents the results of an experimental campaign aimed at testing effectiveness carbon fiber reinforced cementitious matrix (CFRCM) confinement as a repair technique for severely damaged concrete (RC) columns. To evaluate shape effect and transverse steel reinforcement (TSR) – interaction, two different cross-section shapes, TSR rates were investigated. Nine full-scale specimens anal...

We investigate the twist-3 transverse-momentum-dependent parton distribution functions (TMDs) of pion with basis light-front quantization. The TMDs are not independent and can be decomposed into twist-2 genuine terms from equations motion (EOM). compute resulting wave obtained by diagonalizing QCD Hamiltonian, determined for pion's constituent quark-antiquark quark-antiquark-gluon Fock sectors,...

Larger width of P-cladding layer in p-i-n waveguide of traveling wave electroabsorption modulator (TWEAM) results in lower resistance and microwave propagation loss which provides an enhanced high speed electro-optical response. In this paper, a fullvectorial finite-difference-based optical mode solver is presented to analyze mushroom-type TWEAM for the first time. In this analysis, the discont...

We present a toolbox of microstrip building blocks for microwave atom chips geared towards trapped interferometry. Transverse trapping potentials based on the AC Zeeman (ACZ) effect can be formed from combined magnetic near fields pair or triplet parallel transmission lines. Axial confinement provided by lattice (standing wave) along traces. Microwave provide additional parameters dynamically a...

We present theoretical calculations for the cyclotron resonance and various magnetoplasmon modes of a Coulomb interacting two-dimensional GaAs electron gas (2DEG) modulated as lateral superlattice quantum dots subjected to an external perpendicular constant magnetic field. use real-time excitation approach based on Liouville--von Neumann equation density operator, that can go beyond linear resp...

abstract the usage of heroin is associated with a variety of neurologic disorders, including acute transverse myelitis. in this study we present a 19 year old man who was suffered from insufflated heroin after several months of abstinence, and admitted to hospital emergency department, unconscious. he responded to fluid therapy and naloxone, but could not move his legs on examination. he had fl...