If the future development of quantum theory happens to turn in that direction, we could conceive the beginning of the universe in the form of a unique atom, the atomic weight of which is the total mass of the universe. This highly unstable atom would divide in smaller and smaller atoms by...
Early quantum theory was significantly reformulated in the mid-1920s by Werner Heisenberg, Max Born and Pascual Jordan (matrix mechanics); Louis de Broglie and Erwin Schrodinger (wave mechanics); and Wolfgang Pauli and Satyendra Nath Bose (statistics of subatomic particles). Moreover, the Copenhage...
8–10 Can quantum theory also surpass classical limits in modeling general processes that behave differently on different input? Here, we present systematic methods to construct quantum transducers—quantum models that can be simpler than their optimal classical counterparts. The resulting constructions ...
In subject area: Earth and Planetary Sciences In a quantum theory, particles can come in any representation of the little group, which is the subgroup of the inhomogeneous Lorentz group that leaves the 4-momentum of a particle unaffected. ...
Quantum theory provides an extremely accurate description of fundamental processes in physics. It thus seems likely that the theory is applicable beyond the, mostly microscopic, domain in which it has been tested experimentally. Here, we propose a Gedank
With the increase in the number of combined qubits, the computational power of such a quantum system grows exponentially. In theory, this allows a quantum computer to cope with tasks that would take an ordinary digital computer millions of years. For example, the so-called Shore algorithm has ...
In fact, such questions have dogged the theory almost from the moment of its inception in the 1920s. Ever since it was discovered that atomic and sub-atomic particles exhibit both localised, particle-like properties and delocalised, wave-like properties physicists have become ravelled in a debate...
The first step in any EET process is the creation of an exciton (an excited electron) in a chlorophyll molecule. Chlorophyll is an eminently quantum object, in which a metal atom sits at the center of a highly delocalized cloud of electrons (Figure I). The Density Functional Theory (DFT)...
Quantum theory, the church-turing principle and the universal quantum computer. Proc. R. Soc. Lond. A 400, 97–117, doi:10.1098/rspa.1985.0070 (1985). Article ADS MathSciNet MATH Google Scholar Shor, P. Algorithms for quantum computation: discrete logarithms and factoring. In: Proceedings ...
quantum theory was the first to be formulated in terms of operators acting on complex Hilbert spaces1,2. This has puzzled countless physicists, including the fathers of the theory, for whom a real version of quantum theory, in terms of real operators, seemed much more natural3. In fact, pr...