Winding number order in the haldane model with interactions
... wavefunction (8) and the orientations of the pseudospins as variational parameters. This mean-field approach is rather unique. The variational ansatz for ∣ GSñ is a product state over the Hilbert spaces of each quasimomentum mode, described by a quasicontinuous field S (k) that is defined on N equispac ...
... wavefunction (8) and the orientations of the pseudospins as variational parameters. This mean-field approach is rather unique. The variational ansatz for ∣ GSñ is a product state over the Hilbert spaces of each quasimomentum mode, described by a quasicontinuous field S (k) that is defined on N equispac ...
A REPORT ON QUANTUM COMPUTING
... distinct states, a 0 or a 1. In a quantum computer the rules are changed. Not only can a 'quantum bit', usually referred to as a 'qubit', exist in the classical 0 and 1 states, it can also be in a coherent superposition of both. When a qubit is in this state it can be thought of as existing in two u ...
... distinct states, a 0 or a 1. In a quantum computer the rules are changed. Not only can a 'quantum bit', usually referred to as a 'qubit', exist in the classical 0 and 1 states, it can also be in a coherent superposition of both. When a qubit is in this state it can be thought of as existing in two u ...
Quantum Decoherence and the - Philsci
... shall address is whether this impossibility is a matter of principle, or a practical difficulty only. In classical physics there are possible anti-thermodynamical trajectories, but since their measure is zero (i.e. roughly, they are surrounded by thermodynamic trajectories), their attainment is extr ...
... shall address is whether this impossibility is a matter of principle, or a practical difficulty only. In classical physics there are possible anti-thermodynamical trajectories, but since their measure is zero (i.e. roughly, they are surrounded by thermodynamic trajectories), their attainment is extr ...
Chapter 5: Electrons in Atoms
... the surface, as shown in Figure 5-7. Perhaps you’ve taken advantage of the photoelectric effect by using a calculator, such as the one shown in Figure 5-8, that is powered by photoelectric cells. Photoelectric cells in these and many other devices convert the energy of incident light into electrical ...
... the surface, as shown in Figure 5-7. Perhaps you’ve taken advantage of the photoelectric effect by using a calculator, such as the one shown in Figure 5-8, that is powered by photoelectric cells. Photoelectric cells in these and many other devices convert the energy of incident light into electrical ...
Third-order optical response of intermediate
... operators. An alternative approach is to use a representation in which the observables are linear combinations of the basic variables (operators). This approach has been applied to Frenkel exciton systems in Ref. 23 and more recently has been applied to semiconductor systems.24 The off-resonant thir ...
... operators. An alternative approach is to use a representation in which the observables are linear combinations of the basic variables (operators). This approach has been applied to Frenkel exciton systems in Ref. 23 and more recently has been applied to semiconductor systems.24 The off-resonant thir ...
![arXiv:1312.4758v2 [quant-ph] 10 Apr 2014](http://s1.studyres.com/store/data/021352507_1-d587dd4045ccae4ae6a47bb17173f358-300x300.png)
Existence of an Ericson regime in stretched helium
... not anticipated on the basis of traditional atomic physics techniques. An example is the recent discovery of a class of long-lived helium states associated with a prominent regular island in the helium phase space @2#. This discovery has already found an important technical application as a trap for ...
... not anticipated on the basis of traditional atomic physics techniques. An example is the recent discovery of a class of long-lived helium states associated with a prominent regular island in the helium phase space @2#. This discovery has already found an important technical application as a trap for ...
Quantum Complementarity for the Superconducting Condensate and the Resulting Electrodynamic Duality. Abstract
... which one intends to measure ’the position of the electron’ [ read ’the phase of the superconductor’], otherwise these words have no meaning [3].” Today we might say that when we interpret experiments with quantum mechanics, we use a semi-classical approach and this approach requires that the quanti ...
... which one intends to measure ’the position of the electron’ [ read ’the phase of the superconductor’], otherwise these words have no meaning [3].” Today we might say that when we interpret experiments with quantum mechanics, we use a semi-classical approach and this approach requires that the quanti ...
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This article was downloaded by:[Michigan State University Libraries]
... of a multitude of genuine quantum effects which cannot be explained by classical physics. Yet, there exist different views when we refer to the distinct quantum character of light as opposed to classical fields. A major impact on how we describe photonic states is caused by the detection method we use ...
... of a multitude of genuine quantum effects which cannot be explained by classical physics. Yet, there exist different views when we refer to the distinct quantum character of light as opposed to classical fields. A major impact on how we describe photonic states is caused by the detection method we use ...
1 The quantum-classical boundary and the moments of inertia of
... Furthermore, there is evidence that certain additional effects may be involved in quantum to classical transitions (Kofler and Brukner; Leggett, 2005; Adler and Bassi; Bhattacharya et al., 2004; Herzenberg, 2006(a) – 2007(c)). These include, for example, size limitations in measurement processes, co ...
... Furthermore, there is evidence that certain additional effects may be involved in quantum to classical transitions (Kofler and Brukner; Leggett, 2005; Adler and Bassi; Bhattacharya et al., 2004; Herzenberg, 2006(a) – 2007(c)). These include, for example, size limitations in measurement processes, co ...
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.