Four strategies for dealing with the counting anomaly
... that spontaneous collapse theories in fact escape my dilemma, since the property structure entails that not only is state (2) a state in which all n marbles are in the box, it is also a state which behaves as if all n marbles are in the box. Frigg begins by showing that the composition principle fa ...
... that spontaneous collapse theories in fact escape my dilemma, since the property structure entails that not only is state (2) a state in which all n marbles are in the box, it is also a state which behaves as if all n marbles are in the box. Frigg begins by showing that the composition principle fa ...
The Impact of Energy Band Diagram and Inhomogeneous
... cases. At each dimensionality, we have considered the carrier populations in the excited states and in the reservoirs, where conduction and valence bands are treated separately. We show that for room temperature operation the differential gain reduction due to increased size inhomogeneity is more pr ...
... cases. At each dimensionality, we have considered the carrier populations in the excited states and in the reservoirs, where conduction and valence bands are treated separately. We show that for room temperature operation the differential gain reduction due to increased size inhomogeneity is more pr ...
A functional quantum programming language
... We can read had as an operation which, depending on its input qubit x, returns one of two superpositions of a qubit. We can also easily calculate that applying had twice gets us back where we started by cancelling out amplitudes. An important feature of quantum programming is the possibility to crea ...
... We can read had as an operation which, depending on its input qubit x, returns one of two superpositions of a qubit. We can also easily calculate that applying had twice gets us back where we started by cancelling out amplitudes. An important feature of quantum programming is the possibility to crea ...
Polaronic exciton in a parabolic quantum dot
... radii, the electron and the hole interact like polarons through the statically screened Coulomb potential. In the opposite limit, however, when their distance is less than their polaron radii, the two oppositely polarized virtual phonon clouds around each particle overlap and partially cancel out th ...
... radii, the electron and the hole interact like polarons through the statically screened Coulomb potential. In the opposite limit, however, when their distance is less than their polaron radii, the two oppositely polarized virtual phonon clouds around each particle overlap and partially cancel out th ...
Quantum approach to Image processing
... Since efficient quantum circuit for the DFT (i.e., QFT) are known, it remains to find an efficient implementation of the matrix TN. A quantum circuit is proposed by Klappenecker to realize the matrix TN. This is the primitive idea of Klappenecker’s DCT [5]. The result of QFT or Klappenecker’s DCT se ...
... Since efficient quantum circuit for the DFT (i.e., QFT) are known, it remains to find an efficient implementation of the matrix TN. A quantum circuit is proposed by Klappenecker to realize the matrix TN. This is the primitive idea of Klappenecker’s DCT [5]. The result of QFT or Klappenecker’s DCT se ...
Resonant reflection at magnetic barriers in quantum wires - ITN
... distribution emerging from the two occupied wave functions at the Fermi level close to the reflection resonance 共see Fig. 4兲, where the sum of the probability densities 兩⌿1兩2 + 兩⌿2兩2 of the two wave functions 共belonging to the first and second energy levels of the quantum wire兲 as well as the corres ...
... distribution emerging from the two occupied wave functions at the Fermi level close to the reflection resonance 共see Fig. 4兲, where the sum of the probability densities 兩⌿1兩2 + 兩⌿2兩2 of the two wave functions 共belonging to the first and second energy levels of the quantum wire兲 as well as the corres ...
Spin and orbital Kondo effect in electrostatically coupled quantum dots S. L
... transparency region (VSD, h ≈ 0) corresponds to the spin Kondo effect at the dots (εi+ = εi–, 2*SU(2)). The enhanced conductance in this region, marked by the dark circle, is due to the orbital Kondo effect (ε1+ = ε2– for g1 = g2, or ε1+ = ε2+ for g1 = –g2). The orbital degeneracy for the same spin ...
... transparency region (VSD, h ≈ 0) corresponds to the spin Kondo effect at the dots (εi+ = εi–, 2*SU(2)). The enhanced conductance in this region, marked by the dark circle, is due to the orbital Kondo effect (ε1+ = ε2– for g1 = g2, or ε1+ = ε2+ for g1 = –g2). The orbital degeneracy for the same spin ...
Particle in a box
In quantum mechanics, the particle in a box model (also known as the infinite potential well or the infinite square well) describes a particle free to move in a small space surrounded by impenetrable barriers. The model is mainly used as a hypothetical example to illustrate the differences between classical and quantum systems. In classical systems, for example a ball trapped inside a large box, the particle can move at any speed within the box and it is no more likely to be found at one position than another. However, when the well becomes very narrow (on the scale of a few nanometers), quantum effects become important. The particle may only occupy certain positive energy levels. Likewise, it can never have zero energy, meaning that the particle can never ""sit still"". Additionally, it is more likely to be found at certain positions than at others, depending on its energy level. The particle may never be detected at certain positions, known as spatial nodes.The particle in a box model provides one of the very few problems in quantum mechanics which can be solved analytically, without approximations. This means that the observable properties of the particle (such as its energy and position) are related to the mass of the particle and the width of the well by simple mathematical expressions. Due to its simplicity, the model allows insight into quantum effects without the need for complicated mathematics. It is one of the first quantum mechanics problems taught in undergraduate physics courses, and it is commonly used as an approximation for more complicated quantum systems.