Computational Quantum Dynamics (FORTRAN PROGRAMS)

• (1) Numerical Integration of the time-dependent Schroedinger equation by the explicit symetric multistep scheme reference： T.Iitaka, Phys. Rev. E49 (1994) 4684.
• (1-1) Stability Check

|ST2 .FOR | ST4 .FOR | ST6 .FOR |
• (1-2) Time-evolution of Eigenstates

|BTST2 .FOR | BTST4 .FOR | BTST6 .FOR | BTSTCH .FOR | BTSTCN .FOR |
• (1-3) Time-evolution of Scatteringstates

|SC2 .FOR | SC4 .FOR | SC6 .FOR | SCCH .FOR | SCCN .FOR |
• (2) Numerical Integration of the time-dependent Schroedinger equation by Leap Frog method.
REFERENCE："Introduction to Quatum Dynamics" by Toshiaki Iitaka. (Maruzen Publish. Co., 1994,Tokyo; Parity Physics Course, Close Up)

|BOX2 .FOR | BOXN .FOR | 1D .FOR |

• (3) O(N) Algorithm for Calculating Liner Response Functions,Phys. Rev. E 56, 1222-1229 (1997). (journal) (preprint).
       Algorithm for linear response functions at finite temperatures, Application to ESR spectrum of s=1/2 antiferromagnet Cu benzoate. Phys. Rev. Lett. 90, 047203 (2003). (journal) (preprint)

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