Stephon Haigh-Solomon Alexander (born March 30, 1971) is a theoretical physicist, cosmologist, musician and author.

[19] In December 2012, Alexander was the co-author of the paper "Gravitational origin of the weak interaction's chirality".

[20] Focusing on the Lorentz group, the authors studied the unification of the electroweak and gravitational interactions and the space-time connection.

[21] Alexander has mainly worked to extend Einstein's general theory of relativity curved space-time, taking it to extremes in the connection between the smallest and largest entities in the universe.

Alexander has worked as the director of Dartmouth College's EE Just STEM Scholars Program, volunteered for public speaking in inner city schools, taught mathematics in prisons and monitors activities relevant to his scholarship.

[13][22] In February 2013, Alexander wrote in The New York Times about the need for black academics to set a positive trend for the next generation.

[35] Alexander is also the author of The Jazz of Physics, a book that discusses the link between music and the structure of the universe.

[2][13][36][37][38][39] On a Nova documentary, Alexander was featured discussing his life as a jazz saxophonist, while also working as a physicist during the day.