Ultrafast stimulated Raman parallel adiabatic passage by shaped pulses

Abstract

We present a general and versatile technique of population transfer based on parallel adiabatic passage by femtosecond shaped pulses. Their amplitude and phase are specifically designed to optimize the adiabatic passage corresponding to parallel eigenvalues at all times. We show that this technique allows the robust adiabatic population transfer in a Raman system with the total pulse area as low as 3 π, corresponding to a fluence of one order of magnitude below the conventional stimulated Raman adiabatic passage process. This process of short duration, typically pico-and subpicosecond, is easily implementable with the modern pulse shaper technology and opens the possibility of ultrafast robust population transfer with interesting applications in quantum information processing.

Shortcuts to adiabaticity: Fast-forward approach

“…Among other approaches let us mention (i) a transitionless tracking algorithm or "counterdiabatic" approach that adds to the original Hamiltonian extra terms to cancel transitions in the adiabatic or superadiabatic bases [8][9][10][11][12][13]; (ii) inverse engineering of the external driving [3,4,6,[21][22][23][24][25][26] based on Lewis-Riesenfeldt invariants [27], which has been applied in several expansion experiments [25,26]; (iii) optimal control (OC) methods [5,7,14,16], sometimes combined with other methods to enhance their performance [4,5,7]; (iv) the fast-forward (FF) approach advocated by Masuda and Nakamura [19,28]; (v) parallel adiabatic passage [29][30][31][32].…”

Effect of dephasing on superadiabatic three-level quantum driving

“…It has been shown in [7] that transitionless quantum driving can produce a perfect transfer of the population in threelevel and cascade systems. Another alternative approach to transitionlessness was proposed in [8]. It is a technique based on parallel adiabatic passage, which leads to ultrafast population transfer.…”

Dynamics of Entanglement between Moving Four-Level Atom and Single Mode Cavity Field

“…Recently, some authors have paid attention to study the four level systems under various configurations interacting with cavity modes. Many schemes of the four-level atomic systems have been studied and also visualized [12][13][14][15][16][17][18][19][20]. Moreover, a system consists of a four-level atom interacting with a single mode cavity field when the atom is prepared initially in a momentum eigenstate has been studied [16,19].…”