4.1.7. Parameters for time-evolution¶
dt
Type : Positive Double(Default value :
0.1
)Description : The width of time steps.
PumpType
Type : String (Chosen from
"Quench"
,"Pulse Laser"
,"AC Laser"
, and"DC Laser"
.Default value :"Quench"
)Description : The type of time-dependent Hamiltonian. For
"Quench"
, two body operator is added. For"Pulse Laser"
,"AC Laser"
, and"DC Laser"
, the hopping term is modulated as , where is the vector potential which is defined as , , and for for"Pulse Laser"
,"AC Laser"
, and"DC Laser"
, respectively.potential.dat
file is written for displaying the vector potential and the electrical field at each time step.Uquench
Type : Double(Default value :
0.0
)Description :
freq
Type : Double(Default value :
0.1
)Description :
tshift
Type : Double(Default value :
0.0
)Description :
tdump
Type : Double (Default value :
0.1
)Description :
VecPotW
,VecPotL
Type : Double (Default value :
0.0
)Description : The vector potential (fractional coordinate of the reciprocal space) at
. The reciprocal lattice vector is computed from the direct lattice vector shown in Fig. 4.1 , Fig. 4.2 , Fig. 4.3, Fig. 4.4 .