A Matrix Realignment Method for Recognizing Entanglement
... systems, which is based on a realigned matrix constructed from the density matrix. It shows dramatic ability to identify many of the bounded entangled states discussed in the literature. Based on this criterion and the Peres-Horodecki criterion [i.e., PPT (positive partial transposition) criterion], ...
... systems, which is based on a realigned matrix constructed from the density matrix. It shows dramatic ability to identify many of the bounded entangled states discussed in the literature. Based on this criterion and the Peres-Horodecki criterion [i.e., PPT (positive partial transposition) criterion], ...
Information Flow in Entangled Quantum Systems
... we shall express our results in terms of the location and flow of information, we shall not require a quantitative definition of information. We require only that a system S be deemed to contain information about a parameter q if (though not necessarily only if) the probability of some outcome of so ...
... we shall express our results in terms of the location and flow of information, we shall not require a quantitative definition of information. We require only that a system S be deemed to contain information about a parameter q if (though not necessarily only if) the probability of some outcome of so ...
Particle Statistics Affects Quantum Decay and Fano Interference
... multipath decay channels can lead to Fano interference and asymmetric line shapes (Fano resonances [4,5]). Fano’s model [4,5] is a landmark in modern physics. First developed to explain the behavior of electrons scattered by excited atoms [4], it was later adopted to explain phenomena in a number of ...
... multipath decay channels can lead to Fano interference and asymmetric line shapes (Fano resonances [4,5]). Fano’s model [4,5] is a landmark in modern physics. First developed to explain the behavior of electrons scattered by excited atoms [4], it was later adopted to explain phenomena in a number of ...
Philosophy of Mind and the Problem of Free Will
... philosophical part of the mind-body problem is not rationally justified: there is no rational reason to believe that a solution along classical lines is possible in a fundamentally non-classical universe, particularly since the orthodox quantum successor to classical physics involves the necessary i ...
... philosophical part of the mind-body problem is not rationally justified: there is no rational reason to believe that a solution along classical lines is possible in a fundamentally non-classical universe, particularly since the orthodox quantum successor to classical physics involves the necessary i ...
Quantum Mechanics - Nanyang Technological University
... superconducting circuits. Both the electromagnetic quantum vacuum and the phononic quantum vacuum can be studied. Three different experiments carried out at mK temperatures and at microwave frequencies are described. First, we use a Superconducting Quantum Interference Device at the end of a microwa ...
... superconducting circuits. Both the electromagnetic quantum vacuum and the phononic quantum vacuum can be studied. Three different experiments carried out at mK temperatures and at microwave frequencies are described. First, we use a Superconducting Quantum Interference Device at the end of a microwa ...
Probability Current and Current Operators in Quantum Mechanics 1
... In the real space representation of QM, the momentum operator is p̂ = −ih̄∇, potential depends only on the space coordinates and time. The main topic of these notes is to find and describe the operations and operators that would be used to calculate the electric currents associated with the motion o ...
... In the real space representation of QM, the momentum operator is p̂ = −ih̄∇, potential depends only on the space coordinates and time. The main topic of these notes is to find and describe the operations and operators that would be used to calculate the electric currents associated with the motion o ...
Teleportation of an atomic state between two cavities using nonlocal
... We have assumed so far perfect atomic detection efficiency, which is certainly not achieved in a real experiment. Inefficient detection will affect the average success of the teleportation scheme. In order to measure the fidelity of the teleportation process, a stream of atoms a could be prepared in ...
... We have assumed so far perfect atomic detection efficiency, which is certainly not achieved in a real experiment. Inefficient detection will affect the average success of the teleportation scheme. In order to measure the fidelity of the teleportation process, a stream of atoms a could be prepared in ...
q - at www.arxiv.org.
... that their positions and exponents were both optimized during the SCF calculations. The nonlinear optimization of the exponents of basis functions is a new feature that has been added to the original NEO package. For electronic part of the basis set, the standard 6-311++G(d,p) [18] basis set was pla ...
... that their positions and exponents were both optimized during the SCF calculations. The nonlinear optimization of the exponents of basis functions is a new feature that has been added to the original NEO package. For electronic part of the basis set, the standard 6-311++G(d,p) [18] basis set was pla ...
Critical and oÿ-critical singularities in disordered quantum magnets H. Rieger
... it is reminiscent of an activated dynamics scenario in conventional spin glasses or random þeld systems. Moreover, away from the critical point the time dependent correlations still decay algebraically although the spatial correlation length is þnite. In this so-called Griýths-McCoy region [1, 2] ne ...
... it is reminiscent of an activated dynamics scenario in conventional spin glasses or random þeld systems. Moreover, away from the critical point the time dependent correlations still decay algebraically although the spatial correlation length is þnite. In this so-called Griýths-McCoy region [1, 2] ne ...
Quantum-classical correspondence in the hydrogen atom in weak
... In this work we show that the accuracy of the classical results does indeed rest on a particularly direct connection between classical and quantum predictions, and we demonstrate explicitly that in the perturbative limit the quantum expectation values of the angular momentum and the RungeLenz vector ...
... In this work we show that the accuracy of the classical results does indeed rest on a particularly direct connection between classical and quantum predictions, and we demonstrate explicitly that in the perturbative limit the quantum expectation values of the angular momentum and the RungeLenz vector ...
Quantum Clustering Algorithms - The International Machine
... Quantum information is very different from its classical counterpart: it cannot be measured reliably and it is disturbed by observation, but it can exist in a superposition of classical states. Classical and quantum information can be used together to realize wonders that are out of reach of classic ...
... Quantum information is very different from its classical counterpart: it cannot be measured reliably and it is disturbed by observation, but it can exist in a superposition of classical states. Classical and quantum information can be used together to realize wonders that are out of reach of classic ...
Potential Energy - McMaster University
... Forced Oscillations A periodic, external force pushes on the mass (in addition to the spring and damping): ...
... Forced Oscillations A periodic, external force pushes on the mass (in addition to the spring and damping): ...
Mixed quantum–classical dynamics
... (16) are entirely equivalent. As prescribed by eqn. (12) or (16), the classical particles evolve subject to a single e†ective potential corresponding to an average over quantum states. Thus, as with any mean-Ðeld approach, correlations are neglected. This deÐciency may be particularly severe when on ...
... (16) are entirely equivalent. As prescribed by eqn. (12) or (16), the classical particles evolve subject to a single e†ective potential corresponding to an average over quantum states. Thus, as with any mean-Ðeld approach, correlations are neglected. This deÐciency may be particularly severe when on ...
Dilute Fermi and Bose Gases - Subir Sachdev
... and we obtain the unitarity limit. We will see that this Feshbach resonance plays a crucial role in the phase transition obtained by changing µ, and leads to a rich phase diagram of the so-called “unitary Fermi gas”. Our treatment of ZFs in the experimental important case of d = 3 will show that it ...
... and we obtain the unitarity limit. We will see that this Feshbach resonance plays a crucial role in the phase transition obtained by changing µ, and leads to a rich phase diagram of the so-called “unitary Fermi gas”. Our treatment of ZFs in the experimental important case of d = 3 will show that it ...
Quantum analogue computing
... to build it with, nor what it will be most useful for calculating. ...
... to build it with, nor what it will be most useful for calculating. ...
The roads not taken: empty waves, wavefunction collapse and
... makes reference to ‘particle’ properties such as mass, the linearly evolving wavefunction ψ ( x ) does not generally exhibit any feature that could be put into correspondence with a localized particle structure. To turn quantum mechanics into a theory of matter and motion, with real atoms and molecu ...
... makes reference to ‘particle’ properties such as mass, the linearly evolving wavefunction ψ ( x ) does not generally exhibit any feature that could be put into correspondence with a localized particle structure. To turn quantum mechanics into a theory of matter and motion, with real atoms and molecu ...
Chapter 2 Quantum mechanics and probability
... in the beam clearly have spins that are isotropically oriented in space and they cannot be described by a singel spin vector. Instead they can be associated with a statistical ensemble of vectors. Since the spins are isotropically distributed, this indicates that the ensemble of spin vectors |n sho ...
... in the beam clearly have spins that are isotropically oriented in space and they cannot be described by a singel spin vector. Instead they can be associated with a statistical ensemble of vectors. Since the spins are isotropically distributed, this indicates that the ensemble of spin vectors |n sho ...
