Quantum Cryptography Algorithms Implementations

The Post Quantum Cryptography is a type of cryptography that lies on physics properties instead of mathematics , it has many algorithms and implementations like NTRU , McEliece , SIDH … etc

But there is a difference between Post Quantum Cryptography and Quantum Cryptography , i’d like to know some algorithms of that and also if they have implementations for example on Github or any thing like that

Thank you