Are tensors used in any part of Quantum mechanics?

The vectors and tensors analysis and calculus are very important in quantum mechanics,specialy in the rotational transformation and symmetries problemes. Ofcourse scalar is a tensor of rank zero and vector is ascalar of rank one.Also these tensors are also important in quantum field theory which is the basic theory for the Standard Model theory. read more

In Quantum Mechanics, a Tensor Product is used to describe a system that is made up of multiple subsystems. In essence it is a larger Hilbert Space constructed from the "product" of the smaller sub hilbert spaces. The products of wavefunctions and operators in one space with those in another are also referred to as Tensor products. read more

Quantum mechanics and quantum computing utilise tensor products for combination of quantum states Applications of tensors of order > 2 The concept of a tensor of order two is often conflated with that of a matrix. read more