Quantum Physics

The course primarily deals with quantum mechanical theories which are a part of modern physics that have been extremely successful in unifying the wave-particle duality into a single consistent theory. Quantum mechanical theories include wave function and its interpretation, the photoelectric effect, the Heisenberg uncertainty principle, probability density functions, time-dependent and independent Schrodinger equations, free particle and wave packets. These theories have been extraordinarily successful in explaining a wide spectrum of natural phenomena, and numerous new practical devices have been developed as a result of their predictions. The course further goes on to derive the energy level and wavefunction equation for the particle in one dimensional infinite potential well and in one dimensional finite potential well. The course concludes by explaining the tunneling phenomena.

7 topics

136 lectures

Educators

RC

Course Curriculum

19 videos

Reflection and Refraction of Light

22 videos

21 videos

Quantum Physics

24 videos

15 videos

Nuclear Physics

15 videos

Condensed Matter Physics

20 videos

Quantum Physics Lectures

Quantum Physics

Modern Physics - Intro

Quantum mechanics (QM) is a branch of physics providing a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic levels due to the probabilistic nature of quantum mechanics. Quantum mechanics provides a radically different view of the atom, which is no longer seen as a tiny billiard ball but rather as a small, dense nucleus surrounded by a cloud of electrons which can only be described by a probability function. The counterintuitive properties of quantum mechanics (such as superposition and entanglement) arise from the fact that subatomic particles are treated as quantum objects.

Robert Call

RC

Quantum Physics

Photoelectric Effect - Overview

In physics, the photoelectric effect is the emission of electrons or other free carriers when light is shone onto a material. Electrons emitted in this manner can be called photoelectrons. The phenomenon is commonly studied in electronic physics, as well as in fields of chemistry, such as quantum chemistry or electrochemistry.

Robert Call

RC

Quantum Physics

Photoelectric Effect - Example 1

In physics, the photoelectric effect is the emission of electrons or other free carriers when light is shone onto a material. Electrons emitted in this manner can be called photoelectrons. The phenomenon is commonly studied in electronic physics, as well as in fields of chemistry, such as quantum chemistry or electrochemistry.

Robert Call

RC

Quantum Physics

Photoelectric Effect - Example 2

In physics, the photoelectric effect is the emission of electrons or other free carriers when light is shone onto a material. Electrons emitted in this manner can be called photoelectrons. The phenomenon is commonly studied in electronic physics, as well as in fields of chemistry, such as quantum chemistry or electrochemistry.

Robert Call

RC

Quantum Physics

Photoelectric Effect - Example 3

In physics, the photoelectric effect is the emission of electrons or other free carriers when light is shone onto a material. Electrons emitted in this manner can be called photoelectrons. The phenomenon is commonly studied in electronic physics, as well as in fields of chemistry, such as quantum chemistry or electrochemistry.

Robert Call

RC

Quantum Physics

Photoelectric Effect - Example 4

In physics, the photoelectric effect is the emission of electrons or other free carriers when light is shone onto a material. Electrons emitted in this manner can be called photoelectrons. The phenomenon is commonly studied in electronic physics, as well as in fields of chemistry, such as quantum chemistry or electrochemistry.

Robert Call

RC

Quantum Physics

Wave or Particle - Overview

In physics, a wave is a disturbance that transfers energy through space and matter. A wave consists of oscillations or vibrations that travel through a medium. The energy of a wave is determined by the medium, the frequency of the wave, and the amplitude of the wave.

Robert Call

RC

Quantum Physics

Wave or Particle - Example 1

In physics, a wave is a disturbance that transfers energy through space and matter. A wave consists of oscillations or vibrations that travel through a medium. The energy of a wave is determined by the medium, the frequency of the wave, and the amplitude of the wave.

Robert Call

RC

Quantum Physics

Wave or Particle - Example 2

In physics, a wave is a disturbance that transfers energy through space and matter. A wave consists of oscillations or vibrations that travel through a medium. The energy of a wave is determined by the medium, the frequency of the wave, and the amplitude of the wave.

Robert Call

RC

Quantum Physics

Wave or particle - Example 3

In quantum mechanics, a wave–particle duality is a concept concerning the indistinguishability of certain fundamentally different kinds of systems, one exhibiting wave-like properties, the other particle-like properties. A central question in quantum mechanics concerns the relationship between these two kinds of behavior. A wave–particle duality is a system which exhibits both wave-like and particle-like properties. This concept arises frequently in quantum mechanics, especially in discussions of quantum entanglement and the EPR paradox.

Robert Call

RC

Quantum Physics

Wave or Particle - Example 4

In physics, a wave is a disturbance that transfers energy through space and matter. A wave consists of oscillations or vibrations that travel through a medium. The energy of a wave is determined by the medium, the frequency of the wave, and the amplitude of the wave.

Robert Call

RC

Quantum Physics

Waves and Uncertainty - Overview

Quantum physics (or quantum mechanics) is a branch of physics which deals with physical phenomena where the action is on the order of the Planck constant. Quantum mechanics applies to a limited range of phenomena, including all matter with a positive integer spin, and many properties of atoms, molecules, solids, and subatomic particles. Some of these applications are readily understandable to the layperson, like the conductivity of semiconductors and the emission of light from atoms. Others, such as quantum computing and the uncertainty principle are less intuitive.

Robert Call

RC

Quantum Physics

Waves and Uncertainty - Example 1

Quantum physics (or quantum mechanics) is a branch of physics which deals with physical phenomena where the action is on the order of the Planck constant. Quantum mechanics applies to a limited range of phenomena, including all matter with a positive integer spin, and many properties of atoms, molecules, solids, and subatomic particles. Some of these applications are readily understandable to the layperson, like the conductivity of semiconductors and the emission of light from atoms. Others, such as quantum computing and the uncertainty principle are less intuitive.

Robert Call

RC

Quantum Physics

Waves and Uncertainty - Example 2

Quantum physics (or quantum mechanics) is a branch of physics which deals with physical phenomena where the action is on the order of the Planck constant. Quantum mechanics applies to a limited range of phenomena, including all matter with a positive integer spin, and many properties of atoms, molecules, solids, and subatomic particles. Some of these applications are readily understandable to the layperson, like the conductivity of semiconductors and the emission of light from atoms. Others, such as quantum computing and the uncertainty principle are less intuitive.

Robert Call

RC

Quantum Physics

Waves and Uncertainty - Example 3

Quantum physics (or quantum mechanics) is a branch of physics which deals with physical phenomena where the action is on the order of the Planck constant. Quantum mechanics applies to a limited range of phenomena, including all matter with a positive integer spin, and many properties of atoms, molecules, solids, and subatomic particles. Some of these applications are readily understandable to the layperson, like the conductivity of semiconductors and the emission of light from atoms. Others, such as quantum computing and the uncertainty principle are less intuitive.

Robert Call

RC

Quantum Physics

Waves and Uncertainty - Example 4

Quantum physics (or quantum mechanics) is a branch of physics which deals with physical phenomena where the action is on the order of the Planck constant. Quantum mechanics applies to a limited range of phenomena, including all matter with a positive integer spin, and many properties of atoms, molecules, solids, and subatomic particles. Some of these applications are readily understandable to the layperson, like the conductivity of semiconductors and the emission of light from atoms. Others, such as quantum computing and the uncertainty principle are less intuitive.

Robert Call

RC

Quantum Physics

Schrodinger Equation - Overview

In quantum mechanics, the Schrodinger equation is a mathematical equation that describes the change in quantum states of a physical system in terms of its quantum wave function. The wave function contains information about the probability amplitude of position, momentum, and other physical properties of a particle. The Schrödinger equation determines how the wave function changes with time—it expresses the quantum dynamics of a system. It was formulated in late 1925, and published in 1926, by the Austrian physicist Erwin Schrödinger.

Robert Call

RC

Quantum Physics

Schrodinger Equation - Example 1

In quantum mechanics, the Schrodinger equation is a mathematical equation that describes the change in quantum states of a physical system in terms of its quantum wave function. The wave function contains information about the probability amplitude of position, momentum, and other physical properties of a particle. The Schrödinger equation determines how the wave function changes with time—it expresses the quantum dynamics of a system. It was formulated in late 1925, and published in 1926, by the Austrian physicist Erwin Schrödinger.

Robert Call

RC

Quantum Physics

Schrodinger Equation - Example 2

In quantum mechanics, the Schrodinger equation is a mathematical equation that describes the change in quantum states of a physical system in terms of its quantum wave function. The wave function contains information about the probability amplitude of position, momentum, and other physical properties of a particle. The Schrödinger equation determines how the wave function changes with time—it expresses the quantum dynamics of a system. It was formulated in late 1925, and published in 1926, by the Austrian physicist Erwin Schrödinger.

Robert Call

RC

Quantum Physics

Schrodinger Equation - Example 3

In quantum mechanics, the Schrodinger equation is a mathematical equation that describes the change in quantum states of a physical system in terms of its quantum wave function. The wave function contains information about the probability amplitude of position, momentum, and other physical properties of a particle. The Schrödinger equation determines how the wave function changes with time—it expresses the quantum dynamics of a system. It was formulated in late 1925, and published in 1926, by the Austrian physicist Erwin Schrödinger.

Robert Call

RC

Quantum Physics

Schrodinger Equation - Example 4

In quantum mechanics, the Schrodinger equation is a mathematical equation that describes the change in quantum states of a physical system in terms of its quantum wave function. The wave function contains information about the probability amplitude of position, momentum, and other physical properties of a particle. The Schrödinger equation determines how the wave function changes with time—it expresses the quantum dynamics of a system. It was formulated in late 1925, and published in 1926, by the Austrian physicist Erwin Schrödinger.

Robert Call

RC

Quantum Physics

Tunneling - Overview

Tunneling is the quantum mechanical phenomenon where a particle moves through a potential barrier that it classically could not surmount. A classic example of tunneling is the passage of a classical electron through the potential barrier formed by the edges of a square potential well. Quantum mechanically, tunneling can be understood using the Heisenberg uncertainty principle and the wave–particle duality of matter. Tunneling is commonly observed in atomic, molecular, and solid-state systems. Tunneling is of particular importance in the field of quantum computing, and is the mechanism responsible for the quantum tunnelling effect, a process by which a particle tunnels through a barrier that it classically would not be able to surmount.

Robert Call

RC

Quantum Physics

Tunneling Example 1

Tunneling is the quantum mechanical phenomenon where a particle moves through a potential barrier that it classically could not surmount. A classic example of tunneling is the passage of a classical electron through the potential barrier formed by the edges of a square potential well. Quantum mechanically, tunneling can be understood using the Heisenberg uncertainty principle and the wave–particle duality of matter. Tunneling is commonly observed in atomic, molecular, and solid-state systems. Tunneling is of particular importance in the field of quantum computing, and is the mechanism responsible for the quantum tunnelling effect, a process by which a particle tunnels through a barrier that it classically would not be able to surmount.

Robert Call

RC

Quantum Physics

Tunneling Example 2

Tunneling is the quantum mechanical phenomenon where a particle moves through a potential barrier that it classically could not surmount. A classic example of tunneling is the passage of a classical electron through the potential barrier formed by the edges of a square potential well. Quantum mechanically, tunneling can be understood using the Heisenberg uncertainty principle and the wave–particle duality of matter. Tunneling is commonly observed in atomic, molecular, and solid-state systems. Tunneling is of particular importance in the field of quantum computing, and is the mechanism responsible for the quantum tunnelling effect, a process by which a particle tunnels through a barrier that it classically would not be able to surmount.

Robert Call

RC