Antony Valentini (born 28 January 1965) is a British-Italian theoretical physicist known for his work on the foundations of quantum physics.
[1] Valentini obtained an undergraduate degree from Cambridge University, then earned his Ph.D. in 1992[2] with Dennis Sciama at the International School for Advanced Studies (ISAS-SISSA) in Trieste, Italy.
[1][3] In 1999, after seven years in Italy, he took up a post-doc grant to work at the Imperial College with Lee Smolin and Christopher Isham.
In February 2011, he became professor of physics and astronomy at Clemson University; as of 2022, he was listed as adjunct faculty.
[4][5] Together with Mike Towler, Royal Society research fellow of the University of Cambridge's Cavendish Laboratory, he organized a conference on the de Broglie-Bohm theory the Apuan Alps Centre for Physics in August 2010, hosted by the Towler Institute located in Vallico di Sotto in Tuscany, Italy, which is loosely associated with the Theory of Condensed Matter group of the Cavendish Laboratory.
Valentini showed that his expansion of the De Broglie–Bohm theory would allow "signal nonlocality" for non-equilibrium cases in which
[12] He furthermore showed that an ensemble of particles with known wave function and known nonequilibrium distribution could be used to perform, on another system, measurements that violate the uncertainty principle.
He noted that "de Broglie (rather like Maxwell) emphasized an underlying 'mechanical' picture: particles were assumed to be singularities of physical waves in space".
[15] He emphasized that de Broglie, with the assistance of Erwin Schrödinger, had constructed pilot wave theory, but later abandoned it in favor of quantum formalism.
[16] "Signal nonlocality", which is forbidden in orthodox quantum theory, would allow nonlocal quantum entanglement to be used as a stand-alone communication channel without the need of a classical light-speed limited retarded signal to unlock the entangled message from the sender to the receiver.