sclecture6
... The kinetic energy, , depends only upon m*v so if = f(m*v) before the field is applied we must write = f(p-e*A) after the field is applied Quantum mechanically we can replace p by the momentum ...
... The kinetic energy, , depends only upon m*v so if = f(m*v) before the field is applied we must write = f(p-e*A) after the field is applied Quantum mechanically we can replace p by the momentum ...
Feshbach Resonance and Hybrid Atomic/Molecular BEC
... and displays the liquid-like property of a self-determined density. Interestingly the value of this density (or, alternatively, the volume) is determined by the detuning and can be varied by changing the magnetic field. In Fig.(3), we show the trajectory that the condensate follows in the plane of t ...
... and displays the liquid-like property of a self-determined density. Interestingly the value of this density (or, alternatively, the volume) is determined by the detuning and can be varied by changing the magnetic field. In Fig.(3), we show the trajectory that the condensate follows in the plane of t ...
7. Radioactive decay
... the final has one photon of momentum hk and energy hω = hkc. Then, the only element in the sum above for the ˆ†k , with the appropriate 'k momentum: vector potential that gives a non-zero contribution will be the term ∝ a ...
... the final has one photon of momentum hk and energy hω = hkc. Then, the only element in the sum above for the ˆ†k , with the appropriate 'k momentum: vector potential that gives a non-zero contribution will be the term ∝ a ...
Continuity Equation
... Excess carriers in s/c cause non-equilibrium condition, where most of s/c devices operate under this circumstances. Carriers may be generated by: forward-bias of p-n junction, incident light, and impact ionization. Continuity equation – the governing equation for the rate of charge carriers. Thermio ...
... Excess carriers in s/c cause non-equilibrium condition, where most of s/c devices operate under this circumstances. Carriers may be generated by: forward-bias of p-n junction, incident light, and impact ionization. Continuity equation – the governing equation for the rate of charge carriers. Thermio ...
Magnetic field effects on spin texturing in a quantum wire with
... spin texturing and brings out underlying features of the energy dispersion relations that usually remain concealed under equilibrium conditions. These features are observed under moderate magnetic fields and experimentally realizable conditions. The system that we study is a semiconductor quantum wi ...
... spin texturing and brings out underlying features of the energy dispersion relations that usually remain concealed under equilibrium conditions. These features are observed under moderate magnetic fields and experimentally realizable conditions. The system that we study is a semiconductor quantum wi ...
Study Guide for Final Exam
... mass, momentum, nor energy with its surroundings. A closed system versus an open system refers to the ability of mass exchange with the surroundings. If properties for a substance change, the state changes and a process occurs. When a substance has gone through several processes, returning to the sa ...
... mass, momentum, nor energy with its surroundings. A closed system versus an open system refers to the ability of mass exchange with the surroundings. If properties for a substance change, the state changes and a process occurs. When a substance has gone through several processes, returning to the sa ...
A symmetric slab waveguide has a slab index of refraction of n2=1
... a. If the cladding material is fused silica (see Table 1.1 in the book), what is the index of refraction of the core? Use a wavelength of λ=1300nm. b. Calculate the core radius if the fiber has a cutoff wavelength of 1.3μm. c. Estimate the spot size (FWHM) of the fiber mode and the fraction of the m ...
... a. If the cladding material is fused silica (see Table 1.1 in the book), what is the index of refraction of the core? Use a wavelength of λ=1300nm. b. Calculate the core radius if the fiber has a cutoff wavelength of 1.3μm. c. Estimate the spot size (FWHM) of the fiber mode and the fraction of the m ...
Density of states
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In solid-state and condensed matter physics, the density of states (DOS) of a system describes the number of states per interval of energy at each energy level that are available to be occupied. Unlike isolated systems, like atoms or molecules in gas phase, the density distributions are not discrete like a spectral density but continuous. A high DOS at a specific energy level means that there are many states available for occupation. A DOS of zero means that no states can be occupied at that energy level. In general a DOS is an average over the space and time domains occupied by the system. Localvariations, most often due to distortions of the original system, are often called local density of states (LDOS). If the DOS of an undisturbedsystem is zero, the LDOS can locally be non-zero due to the presence of a local potential.