For HDLs, 'compiler' refers to synthesis, a process of transforming the HDL code listing into a physically realizable gate netlist.

In this case, all physically realizable polarization states correspond to time-like, future-directed vectors.

As it turns out, their success comes with a significant caveat: no physically realizable state can be made more nonlocal than the upper-bound posed by quantum mechanics.

The connection of an ideal open circuit to an ideal non-zero current source does not represent any physically realizable system.

The terms are not quite synonymous: "super-Turing computation" usually implies that the proposed model is supposed to be physically realizable, while "hypercomputation" does not.

Turing's oracle machines are strictly mathematical abstractions, and are not physically realizable.

Clearly, this model is not meant to be a physically realizable model, it is just a theoretically interesting abstract machine that gives rise to particularly interesting complexity classes.

We use energy minimization to generate new decoys which are physically realizable low energy decoys and provide better training.

This type of ambiguity function is not physically realizable; that is, there is no pulse that will produce from the definition of the ambiguity function.

If real computation were physically realizable, one could use it to solve NP-complete problems, and even -complete problems, in polynomial time.