In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

[Q]: One variant of this phenomenon can be used to tune the electronic properties of boron nitride nanotubes from nearly insulating to metallic. Another variant of this phenomenon is induced by interference of standing laser waves to trap atoms of a Bose-Einstein condensate loaded into an optical lattice. Schrdinger's third article from his 1926 series of papers presented his perturbation theory treatment of this effect's modification of the Balmer and Lyman series. Along with van der Waals broadening and resonance broadening, this effect can produce pressure broadening of spectral lines. In addition to the giant version and the AC or Autler-Townes form of this effect, it exhibits variants that are linear and quadratic in the applied field. FTP name this shifting and splitting of spectral lines due to an external electric field, the analogue of the Zeeman effect.
[A]: Science

[Q]: This philosopher claimed that mathematics instills "a habit of reasoning closely and in train" in a work which also argues that those who know a smattering of everything are far from attaining truth. This author of On the Conduct of the Understanding also argued that having a variety of religious groups helps prevent civil unrest but condemned Roman Catholics and atheists in A (*) Letter Concerning Toleration. This thinker postulated that the role of government was to protect its people's natural rights of life, liberty, and property and claimed that the mind was a "tabula rasa" in An Essay Concerning Human Understanding. For ten points, name this English Enlightenment philosopher who discussed the social contract in his Two Treatises of Government.
[A]: Social Science

[Q]: A double analytic continuation of this type of solution reveals the "bubble of nothing" instability of the Kaluza-Klein vacuum, as discovered by Edward Witten. Recently, a correspondence between a chiral half of a two-dimensional conformal field theory and those of extremal Kerr type has been suggested. Above a minimum temperature, anti de Sitter space has a phase transition to a space containing one of these, as shown by Page and Hawking. They have entropy proportional to their area, and a temperature proportional to their surface gravity. Supermassive ones lie at the center of most or all galaxies. For 10 points, what are these objects in general relativity, discovered originally by Karl Schwarzschild, from which light does not escape
[A]:
Science