What are some references on the physics of warp drives and wormholes? To be precise, I am looking for some books or papers that preferably do all of the following:
- Overview the current understandings of the classical solutions (one or more) to the Einstein equations which may allow superluminal travel to a sufficiently advanced civilization,
- Discuss quantum field-theoretic roadblocks or advancements to the theory including possible quantum gravitational contributions,
- Do so at at least a graduate level understanding of physics (no "censoring" of mathematics).
Or otherwise prepare the reader with the tools to analyze the physics by themself.
I have seen a paper claiming that a semiclassical analysis suggests that warp drives are unstable (https://arxiv.org/pdf/0904.0141.pdf), but had trouble following why the authors were calculating the things they were–if some reference elucidates the arguments to a level assuming no prior experience in the field apart from necessary background, that would be ideal.