Now showing items 1-10 of 2590
Quantum dissidents: Research on the foundations of quantum theory circa 1970
Why entanglement of formation is not generally monogamous
Unlike correlation of classical systems, entanglement of quantum systems cannot be distributed at will: if one system A is maximally entangled with another system B, it cannot be entangled at all with a third system C. ...
General theory of measurement with two copies of a quantum state
(American Physical Society, 2009-07)
We analyze the results of the most general measurement on two copies of a quantum state. We show that by using two copies of a quantum state it is possible to achieve an exponential improvement with respect to known methods ...
Simulação de algoritmos quânticos considerando a teoria quântica modal em Haskell
(Universidade Federal de Santa MariaBrasilCiência da ComputaçãoUFSMPrograma de Pós-Graduação em Ciência da ComputaçãoCentro de Tecnologia, 2014-08-29)
The development of quantum algorithms faces some difficulties such as the lack of a general-purpose quantum computer, a language or a specific formalism, or high consumption of computational resources when it is simulation ...
Multiple classical limits in relativistic and nonrelativistic quantum mechanics
(AMER INST PHYSICS, 2009)
The existence of a classical limit describing the interacting particles in a second-quantized theory of identical particles with bosonic symmetry is proved. This limit exists in addition to the previously established ...
Quantum statistical correlations in thermal field theories: boundary effective theory
(The American Physical Society, 2010-09-08)
Equivalence of many-gluon Green's functions in the Duffin-Kemmer-Petieu and Klein-Gordon-Fock statistical quantum field theories
We prove the equivalence of many-gluon Green's functions in the Duffin-Kemmer-Petieu and Klein-Gordon-Fock statistical quantum field theories. The proof is based on the functional integral formulation for the statistical ...
A discussion on the origin of quantum probabilities
We study the origin of quantum probabilities as arising from non-Boolean propositional-operational structures. We apply the method developed by Cox to non distributive lattices and develop an alternative formulation of ...
Symmetry transformations in quantum mechanics
(Società Italiana di Fisica, 1987)
We introduce a new definition of symmetry transformations in quantum mechanics which contains the textbook definition as a special case. We find several conserved quantities associated with one (nonunitary) symmetry ...