Real-time instantons and suppression of collision-induced tunneling

Real-time tunneling

Starting with the equivalence of the rest energy of a particle to an amount of the radiant energy characterized by a frequency, in addition to the usual relativistic transformation rules leading to the waveparticle duality, we investigate the case in which this frequency is an internal propery of the particle. This kind of interpretation of the frequency is shown to be relevant to the tunneling...

Collision-induced tunneling in methyl halides

We use the technique of terahertz time-domain spectroscopy to investigate the absorption and dispersion of spectrally dense methyl halide vapors, particularly in the lowand high-frequency spectral wings. For the first time to our knowledge, it is possible to observe essentially zero-frequency absorption resulting from molecular tunneling between the two states of symmetry simultaneously, with a...

Real-Time Collision Detection and Response

A new collision detection and response algorithm for axis aligned bound box (AABB) is here presented. It is perfect visually also in very complex scenarios and extremely efficient on real-time application. It was tested for interaction with complex scene geometry made of convex polygons organized in a BSP tree. The algorithm is very useful for real-time 3d simulations and 3d games where the pla...

Numerical modeling of tunneling induced ground deformation and its control

Tunnelling through cities underlain by soft soil, commonly associated with soil movement around the tunnels and subsequent surface settlement. The predication of ground movement during the tunnelling and optimum support pressure could be based on analytical, empirical or the numerical methods. The commonly used Earth pressure balance (EPB) tunneling machines, uses the excavated soil in a pressu...

NPSNET: Real-time collision detection and response