Operators

This Operators submodule of Qrisp provides a unified framework to describe, optimize and simulate quantum Hamiltonians. It provides a collection of different types of Operators that can be used to model and solve a variety of problems in physics, chemistry, or optimization. (Up to now, QubitOperators and FermionicOperators have been implemented, but stay tuned for future updates!) Each type of Operator comes with comprehensive documentation and brief examples to help you understand its implementation and usage:

Hamiltonian	USED FOR
QubitOperator	describe Hamiltonians in terms of Qubit operators
FermionicOperator	describe Hamiltonians in terms of fermionic ladder operators

We encourage you to explore these Operators, delve into their documentation, and experiment with their implementations.

Examples

Title	Description
VQE Heisenberg model	Investigating the antiferromagnetic Heisenberg model with VQE.
VQE Electronic structure problem	Solving the electronic structure problem with VQE.
Molecular Potential Energy Curves	Calculating molecular potential energy curves with VQE.
Ground State Energy with QPE	Calculating ground state energies with quantum phase estimation.
Transverse Field Ising Model	Hamiltonian simulation of the transverse field Ising model.