Physics.hpp

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#ifndef _Physics_H_
#define _Physics_H_
#include "Type.hpp"
#include "Device.hpp"
#include "cytnx_error.hpp"
#include <vector>
#include <initializer_list>
#include <string>
 
#include "Tensor.hpp"
#include "UniTensor.hpp"
 
#ifdef BACKEND_TORCH
#else
 
namespace cytnx {
  namespace physics {
 
    Tensor spin(const cytnx_double &S, const std::string &Comp, const int &device = Device.cpu);
 
    Tensor spin(const cytnx_double &S, const char &Comp, const int &device = Device.cpu);
 
 
    Tensor pauli(const std::string &Comp, const int &device = Device.cpu);
 
    Tensor pauli(const char &Comp, const int &device = Device.cpu);
 
  #define kBoltz cytnx_double(1.380649e-23)  // J/K
  #define hPlanck cytnx_double(6.62607015e-34)  // J-s
  #define hBar cytnx_double(1.05457181e-34)  // J-s
 
  }  // namespace physics
}  // namespace cytnx
 
namespace cytnx {
  namespace operators {
 
    UniTensor Sz_shalf(const int &device = Device.cpu, const bool &conserve_qns = false);
    UniTensor Sp_shalf(const int &device = Device.cpu, const bool &conserve_qns = false,
                       const std::string &aux_dir = "r");
    UniTensor Sn_shalf(const int &device = Device.cpu, const bool &conserve_qns = false,
                       const std::string &aux_dir = "r");
 
  }  // namespace operators
}  // namespace cytnx
 
namespace cytnx {
  namespace qgates {
    UniTensor pauli_x(const int &device = Device.cpu);
    UniTensor pauli_y(const int &device = Device.cpu);
    UniTensor pauli_z(const int &device = Device.cpu);
    UniTensor hadamard(const int &device = Device.cpu);
    UniTensor phase_shift(const cytnx_double &phase, const int &device = Device.cpu);
    UniTensor swap(const int &device = Device.cpu);
    UniTensor sqrt_swap(const int &device = Device.cpu);
    UniTensor toffoli(const int &device = Device.cpu);
    UniTensor cntl_gate_2q(const UniTensor &gate_1q);
 
  }  // namespace qgates
 
}  // namespace cytnx
 
#endif  // BACKEND_TORCH
 
#endif