Population inversion in quantum dot ensembles via adiabatic rapid passage
... inhomogeneity in practical realizations of ensembles of dots means that no resonant pulse can invert an entire ensemble exhibiting wide variation in energy and coupling strength. There is nevertheless a very good prospect for such inversion via adiabatic rapid passage 共ARP兲, which is known to be rob ...
... inhomogeneity in practical realizations of ensembles of dots means that no resonant pulse can invert an entire ensemble exhibiting wide variation in energy and coupling strength. There is nevertheless a very good prospect for such inversion via adiabatic rapid passage 共ARP兲, which is known to be rob ...
A THEORY OF DEDUCTION FOR QUANTUM MECHANICS Abstract
... of orthomodular lattices on the one hand 1 , and by particular modal frames on the other. It should be stressed here that in the literature quantum logic is given many other different meanings as well. For example, it is considered to be an orthomodular partially ordered set with the set of states d ...
... of orthomodular lattices on the one hand 1 , and by particular modal frames on the other. It should be stressed here that in the literature quantum logic is given many other different meanings as well. For example, it is considered to be an orthomodular partially ordered set with the set of states d ...
Quantum technology: the second quantum revolution
... (v) Entanglement: the superposition principle applied to certain non-local correlations. If a correlation can be realized in two or more indistinguishable ways, the state of the system is a superposition of all such correlations simultaneously. (vi) Decoherence: what happens to quantum superposition ...
... (v) Entanglement: the superposition principle applied to certain non-local correlations. If a correlation can be realized in two or more indistinguishable ways, the state of the system is a superposition of all such correlations simultaneously. (vi) Decoherence: what happens to quantum superposition ...
Relativity and Quantum Field Theory
... adequate theory must be able to identify the number of particles located in each region.1 Condition (b) is supposed to encode the essential particle characteristic of countability: For a system of particles distributed over various regions of space, an adequate theory must be able to identify a uniq ...
... adequate theory must be able to identify the number of particles located in each region.1 Condition (b) is supposed to encode the essential particle characteristic of countability: For a system of particles distributed over various regions of space, an adequate theory must be able to identify a uniq ...
21st July 2004
... confusion and paradox arose because people thought classically, in terms of a single topology for spacetime. It was either R4, or a black hole. But the Feynman sum over histories, allows it to be both at once. One can not tell which topology contributed the observation, any more than one can tell wh ...
... confusion and paradox arose because people thought classically, in terms of a single topology for spacetime. It was either R4, or a black hole. But the Feynman sum over histories, allows it to be both at once. One can not tell which topology contributed the observation, any more than one can tell wh ...
Classical and Quantum Ideal Gases
... and pressure to characterise it, motivated by our human sensitivity to these properties. However, the gas itself has a much finer level of detail, being composed of specks of dust, molecules and atoms, all in random motion. How can we explain the macroscopic, coarse-grained appearance in terms of th ...
... and pressure to characterise it, motivated by our human sensitivity to these properties. However, the gas itself has a much finer level of detail, being composed of specks of dust, molecules and atoms, all in random motion. How can we explain the macroscopic, coarse-grained appearance in terms of th ...
Correlated many-electron states in a quantum dot containing a
... Furthermore, we found clearly that the quantitative results depend on the exact location of the magnetic impurity. The Coulomb interaction strength is chosen to be 0.2 to ensure the accuracy of the result when Ne is increased above six electrons. The partly filled shell calculations are done for tho ...
... Furthermore, we found clearly that the quantitative results depend on the exact location of the magnetic impurity. The Coulomb interaction strength is chosen to be 0.2 to ensure the accuracy of the result when Ne is increased above six electrons. The partly filled shell calculations are done for tho ...
- Philsci
... the pure state that the system really is in, with the corresponding epistemic probability. But that means that the ignorance interpretation does not and can not be used to motivate (OOC). Rather, as I already emphasised, (OOC) is motivated by the (extended e/e link), together with the requirement th ...
... the pure state that the system really is in, with the corresponding epistemic probability. But that means that the ignorance interpretation does not and can not be used to motivate (OOC). Rather, as I already emphasised, (OOC) is motivated by the (extended e/e link), together with the requirement th ...
What is Probability? - General Guide To Personal and Societies
... see how the principle could be justi…ed; for it ought to be facts about physical states of a¤airs that dictate our subjective expectations of future contingencies. What are those facts? The two questions are interdependent. One can rest on the authority of science. One can say that it is a requireme ...
... see how the principle could be justi…ed; for it ought to be facts about physical states of a¤airs that dictate our subjective expectations of future contingencies. What are those facts? The two questions are interdependent. One can rest on the authority of science. One can say that it is a requireme ...
A Suggested Interpretation of the Quantum Theory in Terms of
... the particle position, but can say only that the particle must be somewhere in the region in which ~f~ is appreciable. Similarly, the momentum of a particle that happens to be at the point, x, is given by p= Vs(x), so that since x is not known, the precise value of p is also not, in general, inferra ...
... the particle position, but can say only that the particle must be somewhere in the region in which ~f~ is appreciable. Similarly, the momentum of a particle that happens to be at the point, x, is given by p= Vs(x), so that since x is not known, the precise value of p is also not, in general, inferra ...
Quantum Process on 1 quabit system Au Tung Kin 2009264740 1
... through. In comparison with quantum computer, the information is represented by specific physical quantity (state) of certain particles and the unit of information called “quantum bit” or in short “qubit”. One qubit can store 2 different meanings of information. The relationship between the number o ...
... through. In comparison with quantum computer, the information is represented by specific physical quantity (state) of certain particles and the unit of information called “quantum bit” or in short “qubit”. One qubit can store 2 different meanings of information. The relationship between the number o ...
Invitation to Local Quantum Physics
... The Bisognano-Wichmann Theorem The PCT theorem was used by J. Bisognano and E. Wichmann in 1976 to derive a structural result that is of fundamental importance for the application of Tomita-Takesaki modular theory in relativistic quantum field theory. Let W be a space-like wedge in space-time, i.e. ...
... The Bisognano-Wichmann Theorem The PCT theorem was used by J. Bisognano and E. Wichmann in 1976 to derive a structural result that is of fundamental importance for the application of Tomita-Takesaki modular theory in relativistic quantum field theory. Let W be a space-like wedge in space-time, i.e. ...
Quantum teleportation
Quantum teleportation is a process by which quantum information (e.g. the exact state of an atom or photon) can be transmitted (exactly, in principle) from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location. Because it depends on classical communication, which can proceed no faster than the speed of light, it cannot be used for faster-than-light transport or communication of classical bits. It also cannot be used to make copies of a system, as this violates the no-cloning theorem. While it has proven possible to teleport one or more qubits of information between two (entangled) atoms, this has not yet been achieved between molecules or anything larger.Although the name is inspired by the teleportation commonly used in fiction, there is no relationship outside the name, because quantum teleportation concerns only the transfer of information. Quantum teleportation is not a form of transportation, but of communication; it provides a way of transporting a qubit from one location to another, without having to move a physical particle along with it.The seminal paper first expounding the idea was published by C. H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres and W. K. Wootters in 1993. Since then, quantum teleportation was first realized with single photons and later demonstrated with various material systems such as atoms, ions, electrons and superconducting circuits. The record distance for quantum teleportation is 143 km (89 mi).