Relativistic suppression of wave packet spreading.

We investigate numerically the solution of Dirac equation and analytically the Klein-Gordon equation and discuss the relativistic motion of an electron wave packet in the presence of an intense static electric field. In contrast to the predictions of the (non-relativistic) Schroedinger theory, the spreading rate in the field's polarization direction as well as in the transverse directions is reduced.

[1]  Grobe,et al.  Packet spreading, stabilization, and localization in superstrong fields. , 1992, Physical review letters.

[2]  Sidney D. Drell,et al.  Relativistic Quantum Mechanics , 1965 .

[3]  Schafer,et al.  Dynamic stabilization of hydrogen in an intense, high-frequency, pulsed laser field. , 1991, Physical review letters.

[4]  G. Mourou,et al.  Terawatt to Petawatt Subpicosecond Lasers , 1994, Science.

[5]  K. Boyer,et al.  Superstrong coherent multi-electron intense-field interaction , 1994 .

[6]  H. Reiss.  Relativistic strong-field photoionization , 1990 .

[7]  Faisal,et al.  Three-dimensional relativistic model of a bound particle in an intense laser field. , 1993, Physical review. A, Atomic, molecular, and optical physics.

[8]  M. Horbatsch.  Magnetic field effects in high-frequency photoionization by intense laser pulses , 1993 .

[9]  Miquel,et al.  Experimental demonstration of relativistic self-channeling of a multiterawatt laser pulse in an underdense plasma. , 1995, Physical Review Letters.

[10]  H. Reiss.  Theoretical Methods in Quantum Optics: S-Matrix and Keldysh Techniques for Strong-Field Processes , 1992 .

[11]  M. Lewenstein,et al.  Beyond above-threshold ionization: ionization of an atom by an ultrashort laser pulse above atomic intensity , 1990 .

[12]  Su,et al.  Dynamics of atomic ionization suppression and electron localization in an intense high-frequency radiation field. , 1990, Physical review letters.

[13]  N. J. Druten,et al.  Adiabatic stabilization: observation of the surviving population , 1997 .

[14]  Moore,et al.  Observation of the transition from thomson to Compton scattering in multiphoton interactions with low-energy electrons. , 1995, Physical review letters.

[15]  Muller,et al.  Indications of high-intensity adiabatic stabilization in neon. , 1993, Physical review letters.

[16]  P. Knight,et al.  LETTER TO THE EDITOR: Relativistic mass shift effects in adiabatic intense laser field stabilization of atoms , 1996 .