schrodinger
... Late 1925: Erwin Schrödinger proposes wave mechanics •Used waves, more familiar to scientists at the time •Initially, Heisenberg’s and Schrödinger’s formulations were competing •Eventually, Schrödinger showed they were equivalent; different descriptions which produced the same predictions Both formu ...
... Late 1925: Erwin Schrödinger proposes wave mechanics •Used waves, more familiar to scientists at the time •Initially, Heisenberg’s and Schrödinger’s formulations were competing •Eventually, Schrödinger showed they were equivalent; different descriptions which produced the same predictions Both formu ...
Molekylfysik - Leiden Univ
... the intensity of a line is a general method that can be applied to any atoms or molecules. For a hydrogenic atom, the introduction of the final and initial states, characterized by two different sets of numbers (n, l, ml), leads to the selection rules indicating which transition is allowed: ...
... the intensity of a line is a general method that can be applied to any atoms or molecules. For a hydrogenic atom, the introduction of the final and initial states, characterized by two different sets of numbers (n, l, ml), leads to the selection rules indicating which transition is allowed: ...
CHEM-UA 127: Advanced General Chemistry
... Let us now consider two identical particles, one of which has coordinate and spin x1 and the other has coordinate and spin x2 . The question now arises as to which particle do we assign to x1 and which do we assign to x2 ? In fact, if the particles are indistinguishable, then is does not make sense ...
... Let us now consider two identical particles, one of which has coordinate and spin x1 and the other has coordinate and spin x2 . The question now arises as to which particle do we assign to x1 and which do we assign to x2 ? In fact, if the particles are indistinguishable, then is does not make sense ...
Qunatum extractors and the quantum entropy difference problem
... Equivalent problem: Given on AB, specified by a circuit, estimate the entanglement between the two systems ...
... Equivalent problem: Given on AB, specified by a circuit, estimate the entanglement between the two systems ...
24 Interferometry with Macromolecules: Quantum Paradigms Tested
... thermal ensemble. We can therefore expect to observe only the interference of each molecule with itself. In order to obtain good contrast one has therefore to restrict the initial momentum and position distribution. This then provides the required spectral and spatial coherence of the interfering wa ...
... thermal ensemble. We can therefore expect to observe only the interference of each molecule with itself. In order to obtain good contrast one has therefore to restrict the initial momentum and position distribution. This then provides the required spectral and spatial coherence of the interfering wa ...
Easy introduction to quantum informatics
... On the quantum witch However, Alice (in Amsterdam) and Bob (in Boston) can carry out their experiments at the same time (or even Bob can do his measurements sooner than Alice). ...
... On the quantum witch However, Alice (in Amsterdam) and Bob (in Boston) can carry out their experiments at the same time (or even Bob can do his measurements sooner than Alice). ...
PDF
... A quantum internet consists of quantum computers connected by quantum communication channels. The problem of maintaining the coherence of quantum information as it is moved from atoms to photons, transported through space, and moved back from photons to atoms, is a difficult one. Exactly because qua ...
... A quantum internet consists of quantum computers connected by quantum communication channels. The problem of maintaining the coherence of quantum information as it is moved from atoms to photons, transported through space, and moved back from photons to atoms, is a difficult one. Exactly because qua ...
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.