ユニタリ行列
#' 2x2 Unitary Matrix with determinant +/- 1 #' #' 2x2 Unitary Matrix #' @param theta, a real value. #' @param phi1, a real value. #' @param phi2, a real value. #' @keywords Unitary matrix #' @export #' @examples #' theta <- pi/6;phi1 <- pi/4;phi2 <- pi/3 #' U <- my.Unitary2x2(theta,phi1,phi2) #' U my.Unitary2x2 <- function(theta,phi1,phi2){ x <- cos(theta) * exp(1i*phi1) y <- sin(theta) * exp(1i*phi2) ret1 <- matrix(c(x,y,-Conj(y),Conj(x)),byrow=TRUE,2,2) ret2 <- matrix(c(x,y,Conj(y),-Conj(x)),byrow=TRUE,2,2) return(list(u1 = ret1,u2=ret2)) }
library(devtools) install_github("ryamada22/Ronlyryamada") library(Ronlyryamada) example(my.Unitary2x2)