Phase-dependent cross sections of deuteron-triton fusion in dichromatic intense fields with high-frequency limit

Abstract

We investigate the influence of strong dichromatic laser fields (i.e. 1ω-2ω and 1ω-3ω) with high-frequency limit on the cross sections of deuteron-triton(DT) fusion in Kramers-Henneberger(KH) frame. We focus on the transitions of phase-dependent effects depending on a dimensionless quantity n_{d} , which equals the ratio of the quiver oscillation amplitude to the geometrical touching radius of the deuteron and triton as defined in our previous research. Theoretical calculations show that the angle-dependent as well as phase-dependent Coulomb barrier penetrabilities can be enhanced in dichromatic intense fields, and the corresponding angle-averaged penetrabilities and the fusion cross sections increase significantly compared with field-free case. Moreover, we find that there are twice shifts of the peak in the cross sections whenever the frequency becomes sufficiently low or the intensity sufficiently high. The reason for the first shift is the angle-dependence effects for sub-barrier fusion, while the second shift is due to the accumulation of over-barrier fusion, these mechanisms are analyzed in detail in this paper.

6 pages, 5 figures

References in corpus (4)

• Deuterium-tritium fusion process in strong laser fields: Semiclassical simulation
• Nonlinear optical effects in a nucleus
• Emergent Kondo behavior from gauge fluctuations in spin liquids
• Thermonuclear fusion and generalized Gamow penetrability factor in intense laser fields

Cited by in corpus (4)

• Resonant tunneling of deuteron-triton fusion in strong high-frequency electromagnetic fields
• Enhanced proton-boron nuclear fusion cross sections in intense high-frequency laser
• Theoretical study of the d(d,p)3H and d(d,n)3He processes at low energies
• A new scheme for isomer pumping and depletion with high-power lasers