M-branes, Kerr/CFT correspondence, Horava gravity and noncommutative geometry

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One of the most interesting and attractive problems in physics is that of understanding how to make sense of a quantum theory of gravity. My long-term research involves strengthening and increasing our knowledge of particle and gravitational physics by considering specific questions connected to quantum gravity from the viewpoints of particle physics, gravitational physics and noncommutative geometry. According to our present knowledge, the best candidate theory for a quantum theory of gravity is superstring theory, which seems to exhibit good perturbative behaviors. In superstring theory, all fundamental particles and known forces in nature are realizatiuons of different states of the most fundamental object; a one-dimensional string. However, it has been known for some time that there are five distinct consistent superstring theories. It seemed that they simply exist with some dual relations between them