excited state quantum phase transitions and monodromy
... ESQPT § are phase transitions that occur as a function of excitation energy, Ex , for fixed values of the control parameter, ξ. ESQPT are intimately connected with quantum monodromy. In this presentation, this connection will be discussed. ESQPT and quantum monodromy have been recently observed in m ...
... ESQPT § are phase transitions that occur as a function of excitation energy, Ex , for fixed values of the control parameter, ξ. ESQPT are intimately connected with quantum monodromy. In this presentation, this connection will be discussed. ESQPT and quantum monodromy have been recently observed in m ...
Quantum Mechanics and Closed Timelike Curves
... pieces during any collision. The key point is that one repeats the experiment with all those balls, preserving the same initial conditions corresponding to a self-consistent interaction. With those preparations, let us assume that the billiard ball is made of two equal halves (L and R) that are loos ...
... pieces during any collision. The key point is that one repeats the experiment with all those balls, preserving the same initial conditions corresponding to a self-consistent interaction. With those preparations, let us assume that the billiard ball is made of two equal halves (L and R) that are loos ...
Exact and approximate energy spectrum for the finite square well
... show the emergence of quantized states as solutions of the Schrödinger equation subject to appropriate boundary conditions. Unfortunately, there are not many potentials for which the bound state energies can be expressed in closed form. The classic example is the infinite square well, but it is obvi ...
... show the emergence of quantized states as solutions of the Schrödinger equation subject to appropriate boundary conditions. Unfortunately, there are not many potentials for which the bound state energies can be expressed in closed form. The classic example is the infinite square well, but it is obvi ...
Bonding in Solids, Structural and Chemical Properties
... 2.3. Atoms with more than One Electron 3. Forming Bonds between like Atoms: Bonding and Anti-bonding Molecular Orbitals, Sigma and Pi-bonds 3.1. The Born-Oppenheimer Approximation 3.2. The Molecular Orbital Approximation 3.3. Linear Combination of Atomic Orbitals 3.4. The Binding Curve for H2+ 3.5. ...
... 2.3. Atoms with more than One Electron 3. Forming Bonds between like Atoms: Bonding and Anti-bonding Molecular Orbitals, Sigma and Pi-bonds 3.1. The Born-Oppenheimer Approximation 3.2. The Molecular Orbital Approximation 3.3. Linear Combination of Atomic Orbitals 3.4. The Binding Curve for H2+ 3.5. ...
How Small is a Nanometer?
... structures push the envelope of physics, moving into the strange world of quantum mechanics. For nanoparticles, gravity hardly matters due to their small mass. However, the Brownian motion of these particles now becomes important. Nanosized particles of any given substance exhibit different properti ...
... structures push the envelope of physics, moving into the strange world of quantum mechanics. For nanoparticles, gravity hardly matters due to their small mass. However, the Brownian motion of these particles now becomes important. Nanosized particles of any given substance exhibit different properti ...
Newsletter 2014 - The University of Oklahoma Department of
... department’s atomic, molecular, and optical (AMO) group in August as a new faculty member. Arne earned a BS equivalent degree in physics from the University of ...
... department’s atomic, molecular, and optical (AMO) group in August as a new faculty member. Arne earned a BS equivalent degree in physics from the University of ...
A new Bloch period for interacting cold atoms in 1D optical lattices
... we shall be interested in the time evolution of the Bloch P states |ψκ i = l exp(idκl)|li. Using the explicite expression for the Wannier-Stark states (2), it is easy to show that |ψκ (t)i = exp{−i(J/dF ) sin(dκ(t))}|ψκ(t) i, where κ(t) = κ + F t/h̄ (from now on E0 = 0 for simplicity). Note that the ...
... we shall be interested in the time evolution of the Bloch P states |ψκ i = l exp(idκl)|li. Using the explicite expression for the Wannier-Stark states (2), it is easy to show that |ψκ (t)i = exp{−i(J/dF ) sin(dκ(t))}|ψκ(t) i, where κ(t) = κ + F t/h̄ (from now on E0 = 0 for simplicity). Note that the ...
URL - StealthSkater
... a mechanism affecting the charge radius of proton as determined from electron's or muon's wave function. 1. Muon's wave function is compressed to a volume which is about 8 million times smaller than the corresponding volume in the case of the electron. The Compton radius of the u quark more than twi ...
... a mechanism affecting the charge radius of proton as determined from electron's or muon's wave function. 1. Muon's wave function is compressed to a volume which is about 8 million times smaller than the corresponding volume in the case of the electron. The Compton radius of the u quark more than twi ...
l - coercingmolecules
... Silberberg, M. 2010. Principles of General Chemistry. 2nd ed. New York: McGraw-Hill. ...
... Silberberg, M. 2010. Principles of General Chemistry. 2nd ed. New York: McGraw-Hill. ...
Physics Summit registration packet - STEM Outreach
... that the photographs may be distributed among the participants and may appear on the Society of Physics Students Organization at OSU web site, Sigma Pi Sigma website, Women in Physics Organization at OSU web site, or in any media or advertising of the Summit. Participants’ names or other information ...
... that the photographs may be distributed among the participants and may appear on the Society of Physics Students Organization at OSU web site, Sigma Pi Sigma website, Women in Physics Organization at OSU web site, or in any media or advertising of the Summit. Participants’ names or other information ...
Quantum Spin Hall Effect
... N is one quantum number the other quantum number is the center of the cyclotron motion ...
... N is one quantum number the other quantum number is the center of the cyclotron motion ...
Renormalization group
In theoretical physics, the renormalization group (RG) refers to a mathematical apparatus that allows systematic investigation of the changes of a physical system as viewed at different distance scales. In particle physics, it reflects the changes in the underlying force laws (codified in a quantum field theory) as the energy scale at which physical processes occur varies, energy/momentum and resolution distance scales being effectively conjugate under the uncertainty principle (cf. Compton wavelength).A change in scale is called a ""scale transformation"". The renormalization group is intimately related to ""scale invariance"" and ""conformal invariance"", symmetries in which a system appears the same at all scales (so-called self-similarity). (However, note that scale transformations are included in conformal transformations, in general: the latter including additional symmetry generators associated with special conformal transformations.)As the scale varies, it is as if one is changing the magnifying power of a notional microscope viewing the system. In so-called renormalizable theories, the system at one scale will generally be seen to consist of self-similar copies of itself when viewed at a smaller scale, with different parameters describing the components of the system. The components, or fundamental variables, may relate to atoms, elementary particles, atomic spins, etc. The parameters of the theory typically describe the interactions of the components. These may be variable ""couplings"" which measure the strength of various forces, or mass parameters themselves. The components themselves may appear to be composed of more of the self-same components as one goes to shorter distances.For example, in quantum electrodynamics (QED), an electron appears to be composed of electrons, positrons (anti-electrons) and photons, as one views it at higher resolution, at very short distances. The electron at such short distances has a slightly different electric charge than does the ""dressed electron"" seen at large distances, and this change, or ""running,"" in the value of the electric charge is determined by the renormalization group equation.