What are the quantum states in a system?
For any given attribute of a quantum system (e.g., position), said
So, a quantum state is NEVER an objective physical state, as it ALWAYS depends from the experimenter's information collected from the observation (i.e., measurement) of the system.
Therefore, in the case of an observed (i.e., measured) quantum system, a quantum state "embodies" the results of a series of experiments conducted on it, where for each possible state of the system (the basis states
As a definition, the term "quantum state" can be used to refer to both either any of the basis states of a system (