Abstract: A method of determining a device behavior, wherein the method includes using a first procedure. The first procedure includes discretizing a user specified nano-device structure for at least one quantum method. Additionally, the first procedure includes solving the at least one quantum method, thereby having a solution of the at least one quantum method. Moreover, the first procedure includes extracting a parameter out of the solution of the at least one quantum method. Next, the first procedure includes applying at least one approximate method to the user-specified nano-device structure using the parameter. The first procedure additionally includes solving the at least one approximate method to the user-specified nano-device structure using the parameter. The first procedure also includes extracting the device behavior of the user-specified nano-device structure. Next, the method of determining the device behavior includes iterating the first procedure until a condition is satisfied.

Abstract: A method includes using a first procedure of discretizing a user specified nano-device structure for at least one quantum method with open boundary conditions. Additionally, the first procedure includes solving the at least one quantum method with open boundary conditions, thereby having a solution of the at least one quantum method with open boundary conditions. Moreover, the first procedure includes extracting a parameter out of the solution of the at least one quantum method with open boundary conditions. Furthermore, the first procedure includes discretizing at least one quantum method with closed boundary conditions to the user-specified nano-device structure using the parameter. Next, the first procedure includes solving the at least one quantum method with closed boundary conditions to the user-specified nano-device structure using the parameter. Further, the first procedure includes extracting the device behavior of the user-specified nano-device structure.

Abstract: A method of determining a device behavior, wherein the method includes using a first procedure. The first procedure includes discretizing a user specified nano-device structure for at least one quantum method. Additionally, the first procedure includes solving the at least one quantum method, thereby having a solution of the at least one quantum method. Moreover, the first procedure includes extracting a parameter out of the solution of the at least one quantum method. Next, the first procedure includes applying at least one approximate method to the user-specified nano-device structure using the parameter. The first procedure additionally includes solving the at least one approximate method to the user-specified nano-device structure using the parameter. The first procedure also includes extracting the device behavior of the user-specified nano-device structure. Next, the method of determining the device behavior includes iterating the first procedure until a condition is satisfied.

Abstract: A non-transitory machine readable storage medium having a machine readable program stored therein, wherein the machine readable program, when executed on a processing system, causes the processing system to perform a procedure of modeling many particle systems, wherein the procedure includes discretizing a many particle system into a first set of basis functions, thereby producing a discretized many particle system, wherein the first set of basis functions comprises a plurality of basis functions. The procedure further includes extracting a plurality of observables in the many particle system represented in the first set of basis functions by applying a respective operator on a corresponding Green's function of the plurality of Green's functions.