Related Experiment Video
Updated: Apr 4, 2026
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
9.1K
Photon exchange and entanglement formation during transmission through a rectangular quantum barrier
Georg Sulyok1, Katharina Durstberger-Rennhofer1, Johann Summhammer1
1Institute of Atomic and Subatomic Physics, Vienna University of Technology, 1020 Vienna, Austria.
Physics Letters. A
|September 9, 2015
Summary
Quantum particle interactions with quantum fields involve photon exchange and entanglement. Our analytic solution reveals distinct quantum behaviors compared to classical treatments, including energy symmetry and resonance effects.
Area of Science:
- Quantum mechanics
- Quantum field theory
- Quantum optics
Background:
- Quantum particles interacting with quantum fields exhibit complex behaviors.
- Understanding these interactions is crucial for quantum technologies.
Purpose of the Study:
- To provide a full analytic solution for a composite particle-field system.
- To investigate photon exchange and entanglement phenomena.
- To compare quantum and classical field treatments.
Main Methods:
- Solving the Schrödinger equation for the composite particle-field system.
- Developing a full analytic solution.
- Comparing quantum and classical field dynamics.
Main Results:
- Detailed analysis of photon exchange and entanglement.
- Observed differences in energy emission and absorption symmetry.
- Identified unique resonance effects in the quantum regime.
- Demonstrated distinct behaviors when the field is in a vacuum state.
Conclusions:
- The analytic solution offers deep insights into quantum particle-field interactions.
- Quantum field treatments reveal significant deviations from classical approximations.
- Entanglement and energy exchange dynamics are key distinguishing features.
Related Concept Videos
02:32The de Broglie Wavelength
34.7K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
34.7K
01:25Deactivation Processes: Jablonski Diagram
2.3K
Luminescence, the emission of light by a substance that has absorbed energy, is a process that involves the interaction of molecules with light. The energy-level diagram, or Jablonski diagram, is a graphical representation of these interactions, illustrating the various states and transitions a molecule can undergo. In a typical Jablonski diagram, the lowest horizontal line represents the ground-state energy of the molecule, which is usually a singlet state. This state represents the energies...
2.3K
02:26Photoelectric Effect
41.2K
When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
41.2K
02:45The Quantum-Mechanical Model of an Atom
61.8K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
61.8K
01:22Carrier Generation and Recombination
1.5K
Carrier generation is the process by which electron-hole pairs (EHPs) are created within the semiconductor. In direct-bandgap semiconductors, such as gallium arsenide (GaAs), this occurs efficiently when energy absorption prompts valence electrons to leap into the conduction band, leaving behind holes.
This process is given by the generation rate G and is efficient due to the conservation of momentum between the valence band maximum and conduction band minimum.
Indirect generation involves an...
This process is given by the generation rate G and is efficient due to the conservation of momentum between the valence band maximum and conduction band minimum.
Indirect generation involves an...
1.5K
02:18Interference and Diffraction
54.5K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
54.5K