Undergraduate Quantum Chemistry Written by Jussi Eloranta
... The wavelength (6.1 pm) is shorter than a typical bond length in molecules (100 pm or 1 Å). This has applications in probing molecular structures using diffraction techniques. Macroscopic objects have such high momenta (even when they move slowly) that their wavelengths are undetectably small, and ...
... The wavelength (6.1 pm) is shorter than a typical bond length in molecules (100 pm or 1 Å). This has applications in probing molecular structures using diffraction techniques. Macroscopic objects have such high momenta (even when they move slowly) that their wavelengths are undetectably small, and ...
The Quantum Hall Effect: Novel Excitations and Broken Symmetries
... about 10−10 and an absolute accuracy of about 10−8 (both being limited by our ability to do resistance metrology). In 1982, Tsui, Störmer and Gossard discovered that in certain devices with reduced (but still non-zero) disorder, the quantum number ν could take on rational fractional values. This so ...
... about 10−10 and an absolute accuracy of about 10−8 (both being limited by our ability to do resistance metrology). In 1982, Tsui, Störmer and Gossard discovered that in certain devices with reduced (but still non-zero) disorder, the quantum number ν could take on rational fractional values. This so ...
Quantum information processing by nuclear magnetic resonance
... Nevertheless, there are some important limitations associated with pseudopure ensembles. The first is that the preparation of pseudopure ensembles from the largely random thermal equilibrium ensembles available in liquid-state NMR entails an exponential loss of magnetization as the number of spins i ...
... Nevertheless, there are some important limitations associated with pseudopure ensembles. The first is that the preparation of pseudopure ensembles from the largely random thermal equilibrium ensembles available in liquid-state NMR entails an exponential loss of magnetization as the number of spins i ...
Physics 535 lecture notes: - 8 Sep 27th, 2007 Homework: Griffiths
... For the pion since the two quarks are in a ms=0 state they can decays to spin 1 photons, but the spins have to be oppositely aligned. Similarly the rho can decay into two pions if in the ms=0 state. This is a strong decay so it dominates. If not in a ms=0(spins not aligned) the decay can still happe ...
... For the pion since the two quarks are in a ms=0 state they can decays to spin 1 photons, but the spins have to be oppositely aligned. Similarly the rho can decay into two pions if in the ms=0 state. This is a strong decay so it dominates. If not in a ms=0(spins not aligned) the decay can still happe ...
PowerPoint-presentation
... structure with the selection for diatomic molecules. The selection rules are J = 0, 2. In addition to the Q-branch, there are also O- and S-branches for J = -2 and J = +2 respectively. A Q- branch is observed for all diatomic molecules regardless of their orbital angular momentum ...
... structure with the selection for diatomic molecules. The selection rules are J = 0, 2. In addition to the Q-branch, there are also O- and S-branches for J = -2 and J = +2 respectively. A Q- branch is observed for all diatomic molecules regardless of their orbital angular momentum ...
Three-wave coupling coefficients for perpendicular wave propagation in a magnetized plasma
... for many nonlinear processes. In particular, they determine the threshold values and growth rates for parametric instabilities, see, e.g., Refs. 16 and 17 which constitute key ingredients when studying nonlinear wave absorption. Moreover, weak turbulence theories for plasma waves are typically const ...
... for many nonlinear processes. In particular, they determine the threshold values and growth rates for parametric instabilities, see, e.g., Refs. 16 and 17 which constitute key ingredients when studying nonlinear wave absorption. Moreover, weak turbulence theories for plasma waves are typically const ...
Mean-field theory of the Kondo effect in quantum dots with... Mikio Eto and Yuli V. Nazarov
... singlet and -triplet states are almost degenerate. We have calculated the Kondo temperature T K as a function of ⌬, using the ‘‘poor man’s’’ scaling method.22–24 We have shown that T K(⌬) is maximal around ⌬⫽0 and decreases with increasing ⌬ obeying a power law, T K(⌬)⬀1/⌬ ␥ . The exponent ␥ is not ...
... singlet and -triplet states are almost degenerate. We have calculated the Kondo temperature T K as a function of ⌬, using the ‘‘poor man’s’’ scaling method.22–24 We have shown that T K(⌬) is maximal around ⌬⫽0 and decreases with increasing ⌬ obeying a power law, T K(⌬)⬀1/⌬ ␥ . The exponent ␥ is not ...
ENGINEERING PHYSICS II ADVANCED
... Metals are made into glassy state by increasing their rate of cooling to a very high level. At that state the atoms are unable to arrange in a proper manner and thus form an new amorphous state. These new type of materials which are formed by the rapid cooling technique are called metallic glasses. ...
... Metals are made into glassy state by increasing their rate of cooling to a very high level. At that state the atoms are unable to arrange in a proper manner and thus form an new amorphous state. These new type of materials which are formed by the rapid cooling technique are called metallic glasses. ...
Ferromagnetism
Not to be confused with Ferrimagnetism; for an overview see Magnetism.Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets. In physics, several different types of magnetism are distinguished. Ferromagnetism (including ferrimagnetism) is the strongest type: it is the only one that typically creates forces strong enough to be felt, and is responsible for the common phenomena of magnetism in magnets encountered in everyday life. Substances respond weakly to magnetic fields with three other types of magnetism, paramagnetism, diamagnetism, and antiferromagnetism, but the forces are usually so weak that they can only be detected by sensitive instruments in a laboratory. An everyday example of ferromagnetism is a refrigerator magnet used to hold notes on a refrigerator door. The attraction between a magnet and ferromagnetic material is ""the quality of magnetism first apparent to the ancient world, and to us today"".Permanent magnets (materials that can be magnetized by an external magnetic field and remain magnetized after the external field is removed) are either ferromagnetic or ferrimagnetic, as are other materials that are noticeably attracted to them. Only a few substances are ferromagnetic. The common ones are iron, nickel, cobalt and most of their alloys, some compounds of rare earth metals, and a few naturally-occurring minerals such as lodestone.Ferromagnetism is very important in industry and modern technology, and is the basis for many electrical and electromechanical devices such as electromagnets, electric motors, generators, transformers, and magnetic storage such as tape recorders, and hard disks.