TAILIEUCHUNG - Lecture Physics A2: Fundamental of Quantum Mechanics - PhD. Pham Tan Thi

Lecture Physics A2: Fundamental of Quantum Mechanics - PhD. Pham Tan Thi present the content diffraction of light/electron by one slit, double-slits experiments for electrons, wave-particle duality, De Broglie’s hypothesis, for a non-relativistic free particle, . | Fundamental of Quantum Mechanics Pham Tan Thi . Department of Biomedical Engineering Faculty of Applied Sciences Ho Chi Minh University of Technology Quantum Mechanics Diffraction of Light Electron by One Slit Double-slits Experiments for Electrons Wave-like character of electrons Wave-Particle Duality Energy in Energy out A beam of light can be thought as . . a flux of particle . an electromagnetic wave Newton Planck Einstein Huygens Maxwell Hertz Electric Field Wavelength λ Zero mass speed c 3 x 108 m s Direction of propagation Energy carried by each particle h x 10-34 Planck c λν Dispersion relation ν frequency 1 T period Free space Particle Photon Wave Electromagnetism - Photoelectric Effect - Interference - Compton Effect - Diffraction de Broglie s Hypothesis Light can behave like a particle and Matter Electron can behaves like a wave Energy of Photon by Special Relativity E pc Energy of Photon by Planck s theory E h de Broglie s wavelength h p Wave if λ gt Scale It turns out that everything s kind of mixed together at the fundamental microscopic scale. For a Non-relativistic Free Particle Momentum is p mv here is v is the speed of the particle Total energy of a free particle E is kinetic energy h h h B p p mv 2mE p2 mv 2 E K 2m 2 Bullet m kg v 1000 m s 36 B 10 m What is the de Broglie s Wavelength of an Electron What is the de Broglie s wavelength of an electron moving at x 106 m s What is the de Broglie s Wavelength of an Electron What is the de Broglie s wavelength of an electron moving at x 106 m s Now this is really really fast million meters per second. But it s not relativistic. It s is still slow compared to the speed of light so we can still do everything fairly classically. 31 p mv 10 106 kg m s 2 10 24 34 24 10 h p 10 2 10 10 m This is important number. This speed is a kind of average speed of an electron in ground state of hydrogen. Accelerated What is the de Charges Broglie s electrons .

• Vật lý
• Lecture Physics A2
• Bài giảng Vật lý A2
• Quantum mechanics
• Diffraction of light
• Wave particle duality
• De Broglie’s hypothesis
• Bài giảng Vật lý đại cương A2
• Vật lý đại cương A2
• Atomic physics
• Hydrogen atom
• Metal atoms
• Angular momentum
• Orbital angular momentum
• Orbital magnetic momentum
• Zeeman effect
• Nuclear physics
• Nuclear components
• Binding energy
• Nuclear force
• Nuclear reactions
• Quantum mechanical atomic theory
• Schrödinger Equation
• Energy degeneracy
• Magnetic resonance imaging
• Nuclear binding energy
• Radioactive decay
• Nuclear models
• Nuclear energy
• Electron diffraction
• Matter wave interference
• Heisenberg uncertainty principle
• Schrödinger equation (SEQ)
• Simple Harmonic Motion
• Physical Pendulum
• Damped Oscillations
• Driven Oscillations
• Mechanical waves
• Sound Wave
• Wave motion
• Electromagnetic radiation
• Electromagnetic fields
• Maxwell’s equations
• Plane electromagnetic waves
• Wave equation
• Optical path length
• Malus’s theorem
• Conditions for interference
• Thin film interference
• Diffraction grating
• X ray diffraction
• Huygens’s principle
• Single slit diffraction
• Quantum optics
• Thermal radiation
• Equilibrium thermal radiation
• Laws of blackbody radiation
• Heisenberg’s uncertainty principle
• Matter wave
• Discrete atomic emission line
• Schrodinger equation
• Tunnel effect
• Classical mechanics
• Elementary particles
• Fundamental fermions
• Fundamental bosons
• Special relativity
• Einstein’s postulates
• Lorentz transformation
• Lorentz velocity transformation
• Equilibrium position
• Angular frequency
• Simple harmonic oscillation
• Oscillation frequency
• Electromagnetic field
• Maxwell’s equation
• Ampère’s law
• Faraday’s law
• Gauss’s Law
• Magnetic fields
• Magnetic field lines
• Magnetic force
• Semicircular conductor
• Vector form of torque
• Single oscillating wave
• Inequal intensities
• Superposing sinusoidal waves
• Transparent materials
• Hyugen’s principle
• Weak diffraction
• Fraunhofer diffraction
• Einstein’s special relativity
• Reference frame
• Inertial frame
• Twin paradox
• Quantum nature of light
• Electromagnetic waves
• Wavelength of electromagnetism