title: Does tensorflow-quantum support GPU, and if so how do I make it use mine?
body: <p>I am getting started on using <code>tensorflow-quantum</code> for some QML circuit simulations. I have everything configured correctly for TensorFlow with GPU, and when I run <code>print(tf.config.list_physical_devices('GPU'))</code>, it reports the presence of my GPU.</p>
  <p>However, I've done some Googling, and I've come across a few things suggesting that <code>tensorflow-quantum</code> doesn't actually support GPU acceleration for simulations (e.g. MichaelBroughton's first reply <a href="https://github.com/tensorflow/quantum/issues/193" rel="nofollow noreferrer">here</a>, and <a href="https://github.com/tensorflow/quantum/issues/599" rel="nofollow noreferrer">this issue</a> which is still open). However, it's unclear to me how up-to-date this state of affairs is. I can't find anything about adding GPU support in the version notes.</p>
  <p>Does <code>tensorflow-quantum</code> currently support GPU? If so, how do I (a) make it use my GPU for simulations and (b) verify that it is doing so?</p>