Undergraduate Project in Physics Yuval Zelnik Advisor: Prof. Yigal Meir
... In each iteration, after finding the new wave functions, a merge was made between the old and new wave functions, so that at each iteration the wave functions we changed only by little. Most of the simulations we carried out where 10% of the new wave functions were mixed with 90% of the old ones. In ...
... In each iteration, after finding the new wave functions, a merge was made between the old and new wave functions, so that at each iteration the wave functions we changed only by little. Most of the simulations we carried out where 10% of the new wave functions were mixed with 90% of the old ones. In ...
January 2003
... Consider a particle of mass m moving in a fixed central potential with angular momentum l. The potential is V (r) = −C/2r2 where r is the distance from the center and C > 0 is a constant. Note that the potential leads to an attractive central force, F (r) = −C/r3 . There are various kinds of orbits ...
... Consider a particle of mass m moving in a fixed central potential with angular momentum l. The potential is V (r) = −C/2r2 where r is the distance from the center and C > 0 is a constant. Note that the potential leads to an attractive central force, F (r) = −C/r3 . There are various kinds of orbits ...
Coupled quantum dots as quantum gates
... following analysis if the dots are only approximately equal and approximately of parabolic shape. The ~bare! Coulomb interaction between the two electrons is described by C. The screening length l in almost depleted regions like few-electron quantum dots can be expected to be much larger than the bu ...
... following analysis if the dots are only approximately equal and approximately of parabolic shape. The ~bare! Coulomb interaction between the two electrons is described by C. The screening length l in almost depleted regions like few-electron quantum dots can be expected to be much larger than the bu ...
Magnetohydrodynamic Effects in Gamma
... • The magnetic fields play an important role in relativistic jets/ejecta (e.g., jet formation) • The degree of magnetization (quantified by s; magnetic to kinetic energy flux ratio) is poorly constrained by observations. • GRB afterglow modeling indicates GRB ejecta are more magnetized than the ambi ...
... • The magnetic fields play an important role in relativistic jets/ejecta (e.g., jet formation) • The degree of magnetization (quantified by s; magnetic to kinetic energy flux ratio) is poorly constrained by observations. • GRB afterglow modeling indicates GRB ejecta are more magnetized than the ambi ...
Electron Configurations
... in an atom Each element has a unique electron configuration because each element has a different number of electrons Lowest energy arrangement of electrons for each element is known as the Ground State configuration ...
... in an atom Each element has a unique electron configuration because each element has a different number of electrons Lowest energy arrangement of electrons for each element is known as the Ground State configuration ...
Foundation in Physics
... Describing the two simplest (Basic) motions of the simplest body; Defining the two basic motions of Rigid body; Defining rotation of a particle; Describing the basic motions of particle and rigid body in Cartesian and Vector space; Relativity of motion; Definition of motion. ...
... Describing the two simplest (Basic) motions of the simplest body; Defining the two basic motions of Rigid body; Defining rotation of a particle; Describing the basic motions of particle and rigid body in Cartesian and Vector space; Relativity of motion; Definition of motion. ...
HPSC OBJ: Electrcity
... Electricity and Magnetism Objectives: By the end of this unit, you should be able to do the following… Define electric charge and explain where it comes from Compare and contrast positive charge and negative charge Describe the behavior of a charge in the presence of other charges Compare an ...
... Electricity and Magnetism Objectives: By the end of this unit, you should be able to do the following… Define electric charge and explain where it comes from Compare and contrast positive charge and negative charge Describe the behavior of a charge in the presence of other charges Compare an ...
15.6 Classical Precession of the Angular Momentum Vector
... magnetic moment vector in the same way that the force of gravity produces a torque on the angular momentum of a spinnig top (Eq. 12). According to Newton's classic Laws, this torque is equal to the rate of change of angular momentum. For a single electron in a given orbit, the absolute magnitude of ...
... magnetic moment vector in the same way that the force of gravity produces a torque on the angular momentum of a spinnig top (Eq. 12). According to Newton's classic Laws, this torque is equal to the rate of change of angular momentum. For a single electron in a given orbit, the absolute magnitude of ...
Lecture 6: The Fractional Quantum Hall Effect Fractional quantum
... by Laughlin [4-61. The wave function turns out to be exact for short range interactions and still an excellent approximation for the case of Coulombic interaction. This is corroborated by many sophisticated numerical few-particle calculations. This approach has been very successful in explaining the ...
... by Laughlin [4-61. The wave function turns out to be exact for short range interactions and still an excellent approximation for the case of Coulombic interaction. This is corroborated by many sophisticated numerical few-particle calculations. This approach has been very successful in explaining the ...
Hall Effect, AC Conductivity and Thermal Conductivity
... very good explanation of DC and AC conductivity in metals, the Hall effect, and thermal conductivity (due to electrons) in metals. The model also explains the Wiedemann-Franz law of 1853. "However, the Drude model greatly overestimates the electronic heat capacities of metals. In reality, metals and ...
... very good explanation of DC and AC conductivity in metals, the Hall effect, and thermal conductivity (due to electrons) in metals. The model also explains the Wiedemann-Franz law of 1853. "However, the Drude model greatly overestimates the electronic heat capacities of metals. In reality, metals and ...
Magnetism - Reocities
... If a rod of soft iron is introduced within a solenoid carrying current, the magnetic field becomes very strong. The specimen introduced within is called the core. Strength of an electromagnet can be increased by increasing the number of turns in the coil or by increasing the amount of current flowin ...
... If a rod of soft iron is introduced within a solenoid carrying current, the magnetic field becomes very strong. The specimen introduced within is called the core. Strength of an electromagnet can be increased by increasing the number of turns in the coil or by increasing the amount of current flowin ...
chapter 7: atomic structure and periodicity
... Energy and frequency are ____________________________ proportional. Einstein later theorized that light behaves as both a wave and a stream of particles called ____________________. This phenomenon is often referred to as the ________ nature of light. ...
... Energy and frequency are ____________________________ proportional. Einstein later theorized that light behaves as both a wave and a stream of particles called ____________________. This phenomenon is often referred to as the ________ nature of light. ...
The influence of effective mass on magnetoresistance in ultrathin Fe/Cr/Fe films K. W
... films has led to the discovery of giant magnetoresistance (GMR). This effect was originally discovered in Fe/Cr/Fe multilayers [1, 2]. GMR is the change of electrical resistance observed when rotating from an antiparallel to parallel alignment of film magnetizations. For its description, two differe ...
... films has led to the discovery of giant magnetoresistance (GMR). This effect was originally discovered in Fe/Cr/Fe multilayers [1, 2]. GMR is the change of electrical resistance observed when rotating from an antiparallel to parallel alignment of film magnetizations. For its description, two differe ...
Electromagnet - Community Science Workshop Network
... → Depending on the strength of the battery and the size of the wire, the electromagnet may get hot if left on for a while; it means the battery is dying and may cause small burns. → You ...
... → Depending on the strength of the battery and the size of the wire, the electromagnet may get hot if left on for a while; it means the battery is dying and may cause small burns. → You ...
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.