
Quantum annealing with manufactured spins
... linearly with T, as expected. The other two simulations involved solving a quantum mechanical model of a flux qubit coupled to a thermal bath in which only the two or, respectively, four lowest-lying energy levels of the flux qubit were kept. The dynamics was simulated by numerically solving a non-M ...
... linearly with T, as expected. The other two simulations involved solving a quantum mechanical model of a flux qubit coupled to a thermal bath in which only the two or, respectively, four lowest-lying energy levels of the flux qubit were kept. The dynamics was simulated by numerically solving a non-M ...
Black hole
... Zero temperature system has zero entropy. Assuming dS as an infinitesimal equation, we can integrate this equation to get the relation between the entropy and mass: ...
... Zero temperature system has zero entropy. Assuming dS as an infinitesimal equation, we can integrate this equation to get the relation between the entropy and mass: ...
Full text in PDF form
... of the process, both the system and the local surroundings may be restored to their initial states without producing any change in the rest of the universe. ...
... of the process, both the system and the local surroundings may be restored to their initial states without producing any change in the rest of the universe. ...
What General Chemistry Students Know
... characters of an electron orbital Student2: The speedy electron. S: It would be, like, nucleus which we knew where it was and it would sort of be, like, a mess around it, and in that scribbled mess would be where you find the electron, somewhere in there. P: Mm-hmm. When you say where we would find ...
... characters of an electron orbital Student2: The speedy electron. S: It would be, like, nucleus which we knew where it was and it would sort of be, like, a mess around it, and in that scribbled mess would be where you find the electron, somewhere in there. P: Mm-hmm. When you say where we would find ...
Superluminal Quantum Models of the Photon and Electron
... "magnetic electron", "plasmoid ring", "vortex ring", or "helicon ring". Parson’s magneton model for chemical bonding and electron sharing influenced chemist Gilbert N. Lewis (who coined the name “photon” in 1926) to propose chemical bonding rules for atoms. In the model, charge fibers are twisted an ...
... "magnetic electron", "plasmoid ring", "vortex ring", or "helicon ring". Parson’s magneton model for chemical bonding and electron sharing influenced chemist Gilbert N. Lewis (who coined the name “photon” in 1926) to propose chemical bonding rules for atoms. In the model, charge fibers are twisted an ...
Excitation Energy Dependence of Fluorescence Intermittency Nanocrystals in
... in contrast to a high-energy input process such as molecular-beam-epitaxy [2]. Colloidally synthesized quantum dots are freestanding , whereas epitaxial quantum dots are bound to a substrate. A typical colloidally synthesized quantum dot (Fig. 1.1) is spherical in shape, less than 10 nm in diameter, ...
... in contrast to a high-energy input process such as molecular-beam-epitaxy [2]. Colloidally synthesized quantum dots are freestanding , whereas epitaxial quantum dots are bound to a substrate. A typical colloidally synthesized quantum dot (Fig. 1.1) is spherical in shape, less than 10 nm in diameter, ...
Multi-component fractional quantum Hall states in graphene: S U(4
... semiquantitatively [26] for another system with two valleys, namely AlAs quantum wells, where the valley splitting (analogous to the Zeeman energy) can be controlled by application of in-plane symmetry breaking strain. With spin frozen, 1/3 is valley-polarized, whereas 2/3 and 2/5 are valley singlet ...
... semiquantitatively [26] for another system with two valleys, namely AlAs quantum wells, where the valley splitting (analogous to the Zeeman energy) can be controlled by application of in-plane symmetry breaking strain. With spin frozen, 1/3 is valley-polarized, whereas 2/3 and 2/5 are valley singlet ...
Detecting Non-Abelian Anyons by Charging Spectroscopy
... in quantum dots at B ¼ 0 [12,13]. For a quantized Hall state in a strong magnetic field, however, if QPs have more than one spin state, we expect their energies to split, due to the Zeeman and/or Coulomb exchange fields, by an amount that is large compared to the temperatures of interest. Moreover, ...
... in quantum dots at B ¼ 0 [12,13]. For a quantized Hall state in a strong magnetic field, however, if QPs have more than one spin state, we expect their energies to split, due to the Zeeman and/or Coulomb exchange fields, by an amount that is large compared to the temperatures of interest. Moreover, ...
Document
... “The recent development of quantum information science and its potential applications have brought many of the fundamental questions of quantum physics to the mainstream…I discuss a system at the heart of these questions —quantum entanglement of the spin states of two individual massive particles at ...
... “The recent development of quantum information science and its potential applications have brought many of the fundamental questions of quantum physics to the mainstream…I discuss a system at the heart of these questions —quantum entanglement of the spin states of two individual massive particles at ...
Paper
... distributions of a set of random variables RV. Suppose that by some reasons (e.g. technological or social, or economical, or political) we are not able to perform measurements of the whole collection of random variables ξ ∈ RV. Thus we are not able to obtain the complete statistical description of s ...
... distributions of a set of random variables RV. Suppose that by some reasons (e.g. technological or social, or economical, or political) we are not able to perform measurements of the whole collection of random variables ξ ∈ RV. Thus we are not able to obtain the complete statistical description of s ...
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.