Untitled - School of Natural Sciences
... at the center of black holes, because matter there is crushed into a region of extremely high curvature. Because gravity involves spacetime curvature, a quantum gravity theory will also be a theory of quantum spacetime; it should clarify what constitutes the “spacetime foam” mentioned earlier, and i ...
... at the center of black holes, because matter there is crushed into a region of extremely high curvature. Because gravity involves spacetime curvature, a quantum gravity theory will also be a theory of quantum spacetime; it should clarify what constitutes the “spacetime foam” mentioned earlier, and i ...
Foundations and Measures of Quantum Non
... The physical states of the total system are described by density matrices ρ, representing positive trace class operators on H with unit trace. This means that ρ ≥ 0, which implies that ρ is self-adjoint with nonnegative eigenvalues, and trρ = 1. The corresponding reduced states of subsystems S and E ...
... The physical states of the total system are described by density matrices ρ, representing positive trace class operators on H with unit trace. This means that ρ ≥ 0, which implies that ρ is self-adjoint with nonnegative eigenvalues, and trρ = 1. The corresponding reduced states of subsystems S and E ...
Interference and Coulomb correlation effects in P. T
... to ferromagnetic leads. We have found the Lorenzian line shape resonance associated with the anti-bonding state, and the Fano line shape resonance associated with the bonding state. The influence of the resonances on the tunnel magnetoresistance was also analyzed and we found some enhancement of the ...
... to ferromagnetic leads. We have found the Lorenzian line shape resonance associated with the anti-bonding state, and the Fano line shape resonance associated with the bonding state. The influence of the resonances on the tunnel magnetoresistance was also analyzed and we found some enhancement of the ...
The Berry-Tabor conjecture
... with γ diophantine. [γ is called diophantine if there exist constants κ ≥ 2, C > 0 such that |α− pq | > Cq −κ for all rationals pq .3 ] These diophantine conditions cannot be dropped, since one can construct an uncountable set of tori with area 4π (say), whose pair correlation density does not conve ...
... with γ diophantine. [γ is called diophantine if there exist constants κ ≥ 2, C > 0 such that |α− pq | > Cq −κ for all rationals pq .3 ] These diophantine conditions cannot be dropped, since one can construct an uncountable set of tori with area 4π (say), whose pair correlation density does not conve ...
Quantum cryptography
... be a state of two very distant particles, for example on two planets Measurement of one of the particles, with respect to the standard basis, makes the above state to collapse to one of the states |00> or |11>. This means that subsequent measurement of other particle (on another planet) provides the ...
... be a state of two very distant particles, for example on two planets Measurement of one of the particles, with respect to the standard basis, makes the above state to collapse to one of the states |00> or |11>. This means that subsequent measurement of other particle (on another planet) provides the ...
Quantum Spin Hall Effect and their Topological Design of Devices
... quantum spin Hall state remain to be non-trivial even after the introduction of spin-up spin-down scattering,[3] which destroy the quantum spin Hall effect. In order experiment was introduced a topological Z 2 , invariant who characterizes a state as trivial or non-trivial band insulator (regardless ...
... quantum spin Hall state remain to be non-trivial even after the introduction of spin-up spin-down scattering,[3] which destroy the quantum spin Hall effect. In order experiment was introduced a topological Z 2 , invariant who characterizes a state as trivial or non-trivial band insulator (regardless ...
Quantum theory
... We now know that there are four different kinds of interactions. 1. Gravitational : planetary system, stars and galaxies. 2. Electromagnetic : formation of atoms. 3. Strong : stability of atomic nuclei. 4. Weak : beta decay. For the last two, one can have only quantum theory since they operate only ...
... We now know that there are four different kinds of interactions. 1. Gravitational : planetary system, stars and galaxies. 2. Electromagnetic : formation of atoms. 3. Strong : stability of atomic nuclei. 4. Weak : beta decay. For the last two, one can have only quantum theory since they operate only ...
An Ontological Interpretation of the Wave Function - Philsci
... we can prepare a single measured system whose wave function is ψ(t) at a given instant t. For example, the measured system is an electron being in the ground state of a Hydrogen atom. Now, by a protective measurement, we can obtain the expectation value of the measured observable in this state with ...
... we can prepare a single measured system whose wave function is ψ(t) at a given instant t. For example, the measured system is an electron being in the ground state of a Hydrogen atom. Now, by a protective measurement, we can obtain the expectation value of the measured observable in this state with ...