Finite Element Approach of Electronic Structures THÈSE
... this problem cannot be solved exactly for most systems. We employ the Hartree-Fock methods to simplify the problem. Here we propose to employ localized trial functions, and particularly the finite element method, to approximate the solution. This numerical tool has been widely used in other areas an ...
... this problem cannot be solved exactly for most systems. We employ the Hartree-Fock methods to simplify the problem. Here we propose to employ localized trial functions, and particularly the finite element method, to approximate the solution. This numerical tool has been widely used in other areas an ...
On Zurek`s Derivation of the Born Rule
... Because we consider Zurek’s approach promising, we would like to bring out the assumptions that enter into the derivation but have not been explicitly mentioned in Refs. 18–20. Hopefully such an analysis will help in a careful evaluation of the question to what extent Zurek’s derivation can be regar ...
... Because we consider Zurek’s approach promising, we would like to bring out the assumptions that enter into the derivation but have not been explicitly mentioned in Refs. 18–20. Hopefully such an analysis will help in a careful evaluation of the question to what extent Zurek’s derivation can be regar ...
The Violation of Bell Inequalities in the Macroworld
... (pers. com.) suggested that the macroscopic violation of Bell inequalities by the vessels of water example does not have the same ``status'' as the microscopic violation in the Bohm example of entangled spins, because events are identified that are not identical. This idea was first considered in Ae ...
... (pers. com.) suggested that the macroscopic violation of Bell inequalities by the vessels of water example does not have the same ``status'' as the microscopic violation in the Bohm example of entangled spins, because events are identified that are not identical. This idea was first considered in Ae ...
Between classical and quantum
... converged to the classical expression. Although Bohr believed that quantum mechanics should be interpreted through classical physics, among the founders of the theory he seems to have been unique in his lack of appreciation of the problem of deriving classical physics from quantum theory. Nonetheles ...
... converged to the classical expression. Although Bohr believed that quantum mechanics should be interpreted through classical physics, among the founders of the theory he seems to have been unique in his lack of appreciation of the problem of deriving classical physics from quantum theory. Nonetheles ...
Quantum computing with cavity QED
... spin 1/2 particle. Several of these qubits can be thought to form a tensor product similar as bits form bytes ...
... spin 1/2 particle. Several of these qubits can be thought to form a tensor product similar as bits form bytes ...
Braid Topologies for Quantum Computation
... the control pair through the target qubit. If the control qubit is in the state |0L i this weave does nothing, but if it is in the state |1L i the effect is equivalent to braiding two quasiparticles within the target qubit. Thus, in the limit ǫ → 0, this effective braiding is all within a qubit and ...
... the control pair through the target qubit. If the control qubit is in the state |0L i this weave does nothing, but if it is in the state |1L i the effect is equivalent to braiding two quasiparticles within the target qubit. Thus, in the limit ǫ → 0, this effective braiding is all within a qubit and ...
Between classical and quantum
... other hand, no consensus has been reached on the Copenhagen Interpretation, but in view of the parodies of it one typically finds in the literature we describe it in detail. On the assumption that quantum mechanics is universal and complete, we discuss three ways in which classical physics has so fa ...
... other hand, no consensus has been reached on the Copenhagen Interpretation, but in view of the parodies of it one typically finds in the literature we describe it in detail. On the assumption that quantum mechanics is universal and complete, we discuss three ways in which classical physics has so fa ...
PERIMETER INSTITUTE L`INSTITUT PERIMETER
... From its inception, spacetime and quantum theory have been at the heart of PI research. While these topics might at first sight seem abstract and somewhat remote from the real world, we hope that you will see in these pages that here at PI, we still live by the maxim that nature and experiment are a ...
... From its inception, spacetime and quantum theory have been at the heart of PI research. While these topics might at first sight seem abstract and somewhat remote from the real world, we hope that you will see in these pages that here at PI, we still live by the maxim that nature and experiment are a ...
The theoretical impact polarization of the OI 6300 ˚A red line of Earth
... observed a tangential polarization of about 5% between the events which decreased during the events. They ascribed the polarization outside of the event to low energy electron impact due to the permanent polar rain. The electron energy increases during the events, which would be compatible with the ...
... observed a tangential polarization of about 5% between the events which decreased during the events. They ascribed the polarization outside of the event to low energy electron impact due to the permanent polar rain. The electron energy increases during the events, which would be compatible with the ...
Quantum networking with single ions and single photons interfaced in free space
... The quantum system of choice: single trapped ions Of all the physical systems listed above, single trapped atomic ions have come closest to complying with the DiVincenzo criteria, proving to be among the most promising candidates for future large-scale quantum-information processors [31, 32]. Atomic ...
... The quantum system of choice: single trapped ions Of all the physical systems listed above, single trapped atomic ions have come closest to complying with the DiVincenzo criteria, proving to be among the most promising candidates for future large-scale quantum-information processors [31, 32]. Atomic ...
Polynomial-Time Algorithms for Prime Factorization and Discrete
... Feynman [1982, 1986] seems to have been the first to suggest that quantum mechanics might be computationally more powerful than Turing machines. He gave arguments as to why quantum mechanics is intrinsically computationally expensive to simulate on a classical computer. He also raised the possibilit ...
... Feynman [1982, 1986] seems to have been the first to suggest that quantum mechanics might be computationally more powerful than Turing machines. He gave arguments as to why quantum mechanics is intrinsically computationally expensive to simulate on a classical computer. He also raised the possibilit ...
Ultracold atoms in optical lattices generated by quantized light fields
... the basis of our further considerations. It is, however, still much too complex for a general solution and we will have to make further simplifying assumptions. Hence at this point we will restrict ourselves to 1D motion along the cavity axis. In an experimental setup this could be actually realized ...
... the basis of our further considerations. It is, however, still much too complex for a general solution and we will have to make further simplifying assumptions. Hence at this point we will restrict ourselves to 1D motion along the cavity axis. In an experimental setup this could be actually realized ...
Useful Concepts from Information Theory
... never infinite, we sometimes have to send atypical messages. Real coding schemes handle this by having a code word for every possible message (not merely the typical messages), but they use short code words for typical messages, and long code words for atypical messages. This allows one to get close ...
... never infinite, we sometimes have to send atypical messages. Real coding schemes handle this by having a code word for every possible message (not merely the typical messages), but they use short code words for typical messages, and long code words for atypical messages. This allows one to get close ...
Braid Topologies for Quantum Computation
... to weave the control pair through the target qubit. If the control qubit is in the state |0L i this weave does nothing, but if it is in the state |1L i the effect is equivalent to braiding two quasiparticles within the target qubit. Thus, in the limit ² → 0, this effective braiding is all within a q ...
... to weave the control pair through the target qubit. If the control qubit is in the state |0L i this weave does nothing, but if it is in the state |1L i the effect is equivalent to braiding two quasiparticles within the target qubit. Thus, in the limit ² → 0, this effective braiding is all within a q ...
feasibility study
... vacuum: cool it down to zero temperature after evacuation. Absolute zero temperature (-273C) was far removed from the technical possibilities of that century, so it seemed as if the problem was solved. In the 20th century, both theory and experiment have shown that there is a non-thermal radiation i ...
... vacuum: cool it down to zero temperature after evacuation. Absolute zero temperature (-273C) was far removed from the technical possibilities of that century, so it seemed as if the problem was solved. In the 20th century, both theory and experiment have shown that there is a non-thermal radiation i ...
Bohr–Einstein debates
The Bohr–Einstein debates were a series of public disputes about quantum mechanics between Albert Einstein and Niels Bohr. Their debates are remembered because of their importance to the philosophy of science. An account of the debates was written by Bohr in an article titled ""Discussions with Einsteinon Epistemological Problems in Atomic Physics"". Despite their differences of opinion regarding quantum mechanics, Bohr and Einstein had a mutual admiration that was to last the rest of their lives.The debates represent one of the highest points of scientific research in the first half of the twentieth century because it called attention to an element of quantum theory, quantum non-locality, which is absolutely central to our modern understanding of the physical world. The consensus view of professional physicists has been that Bohr proved victorious, and definitively established the fundamental probabilistic character of quantum measurement.