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Light, Matter, and Geometry: The Cornerstones of
Light, Matter, and Geometry: The Cornerstones of

Quantum Theory: Concepts and Methods
Quantum Theory: Concepts and Methods

Coherent manipulation of single quantum systems
Coherent manipulation of single quantum systems

Three Myths About Time Reversal in Quantum Theory 1. Introduction
Three Myths About Time Reversal in Quantum Theory 1. Introduction

... 2. First Stage: Time reversal is unitary or antiunitary 2.1. Wigner’s theorem. Wigner’s theorem is one of the central results of modern quantum theory, first presented by Wigner (1931). The theorem is often glossed as showing that any transformation A : H → H on a separable Hilbert space that deserv ...
slides
slides

... vacuum (nothing) ...
Three myths about time reversal in quantum theory
Three myths about time reversal in quantum theory

... 2. First Stage: Time reversal is unitary or antiunitary 2.1. Wigner’s theorem. Wigner’s theorem is one of the central results of modern quantum theory, first presented by Wigner (1931). The theorem is often glossed as showing that any transformation A : H → H on a separable Hilbert space that deserv ...
General randomness amplification with non
General randomness amplification with non

... desirable protocol. We defer formal definitions to the next section. Let us first consider what it entails for statements like Theorem 1.2 to be true. We need to design a deterministic procedure that operates on some physical system with a single source of weak randomness with sufficient min-entropy ...
Single and double bosonic stimulation of THz emission in polaritonic systems
Single and double bosonic stimulation of THz emission in polaritonic systems

... Limiting mechanism preventing the achievement of the THz lasing threshold is the excitonic Mott transition. However, this effect is not investigated in detail. Various theoretical estimates suggest that the critical 2D excitonic Mott density corresponds to ,1011– 1012 cm22 9,25. At the same time, ex ...
Einstein`s Greatest Mistake - Free
Einstein`s Greatest Mistake - Free

... Maxwell’s equations a special status in that the equations were thus held to be invariant to such motion. However, Einstein sacrificed Newton’s mechanical theories and this led to apparently strange effects (to those who were used to basing their understanding of the universe on their everyday exper ...
Elliptic Curve Cryptography and Quantum Computing
Elliptic Curve Cryptography and Quantum Computing

... more than one input. However, an elliptic curve may have two outputs for every one input thus making it not a function. We can see this in Figure 1. ...
Quantum Mechanics
Quantum Mechanics

Modeling Luminance Perception at Absolute Threshold
Modeling Luminance Perception at Absolute Threshold

... is isomerized without any reason, leading to false-positive responses, which becomes important when explaining the perception of noise in the absence of all light. There are 60,000,000 rods [JSN92] and given 2,000,000,000 rhodopsin molecules in each [YMB79], results in 0.032 events per second and ro ...
using standard syste - the Max Planck Institute for the Physics of
using standard syste - the Max Planck Institute for the Physics of

... Moon-earth-sun, the oldest, best known but least understood three-body problem—this is how Martin Gutzwiller summarized research on the gravitational dynamics of three masses in a recent review (Gutzwiller, 1998; see also 1995). Probably a similar statement applies to the corresponding microscopic t ...
On Fractional Schrödinger Equation and Its Application
On Fractional Schrödinger Equation and Its Application

... is this which shows joining of the above two definitions, ...
ןב תטיסרבינוא - בגנב ןוירוג
ןב תטיסרבינוא - בגנב ןוירוג

... transmission (LEPET) spectroscopy studies of thin ordered films comprised of chiral molecules, deposited on polycrystalline Au substrate. 82 In this experiment, circularly polarized light was used to eject spin-polarized photoelectrons from the underlying Au substrate, and the quantum yield and kine ...
29 Electronic Response to External Perturbations
29 Electronic Response to External Perturbations

... The transport and optical properties of solids are due primarily to the electron system and to a lesser extent to the ions. These properties were discussed in Chapters 24 and 25 without taking the interaction between electrons into account, although its role may be important in some cases. In this c ...
Thesis - Archive ouverte UNIGE
Thesis - Archive ouverte UNIGE

The influence of cavity photons on the transient transport
The influence of cavity photons on the transient transport

INCT_IQ_ENG_1 - Instituto de Física / UFRJ
INCT_IQ_ENG_1 - Instituto de Física / UFRJ

Measuring a single spin in an arbitrary direction A spin 1/2
Measuring a single spin in an arbitrary direction A spin 1/2

... following inequality must always be obeyed. ...
Charge Rearrangement and Screening in a Quantum Point Contact S. Lu¨scher,
Charge Rearrangement and Screening in a Quantum Point Contact S. Lu¨scher,

... readjusted for each, to keep the detector conductance in its sensitive, near-linear regime. Each of the 14 traces in Fig. 1(c) covers a 100 mV range in VQPC , with consecutive traces overlapping by 50 mV. To reduce noise we averaged each trace over 40 measurements. No striking features are visible i ...
Wigner`s Dynamical Transition State Theory in
Wigner`s Dynamical Transition State Theory in

... more than one DoF (or else dynamical phenomena such as ‘chaos’ would have been discovered many years earlier). However, two DoF Hamiltonian systems, where the Hamiltonian is the sum of the kinetic and potential energies, do allow for certain constructions based solely on the potential energy surface ...
Glossary of Terms used in Photochemistry, 3rd Ed. (Provisional)
Glossary of Terms used in Photochemistry, 3rd Ed. (Provisional)

... The Subcommittee on Photochemistry of the IUPAC Division of Organic and Biomolecular Chemistry emphasizes that it is not the purpose of this compilation to impose terms or rules that would hinder the freedom of choice in the use of terminology. Photochemistry being an interdisciplinary area of scien ...
Berry Phase Effects on Electronic Properties
Berry Phase Effects on Electronic Properties

Superconducting qubits coupled to nanoelectromechanical resonators: An architecture
Superconducting qubits coupled to nanoelectromechanical resonators: An architecture

... builds on the interesting recent theoretical work by Armour et al. 关33,34兴 and Irish et al. 关35兴 on the entanglement of a nanoelectromechanical resonator with a single Cooper-pair box. In fact, there is currently a big effort to push a variety of nanomechanical systems to the quantum limit 关53–55兴. ...
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Quantum electrodynamics



In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction.In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it ""the jewel of physics"" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen.
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