# History and Some Aspects of the Lamb Shift

@article{Maclay2020HistoryAS, title={History and Some Aspects of the Lamb Shift}, author={G. Jordan Maclay}, journal={Physics}, year={2020} }

Radiation is a process common to classical and quantum systems with very different effects in each regime. In a quantum system, the interaction of a bound electron with its own radiation field leads to complex shifts in the energy levels of the electron, with the real part of the shift corresponding to a shift in the energy level and the imaginary part to the width of the energy level. The most celebrated radiative shift is the Lamb shift between the 2 s 1 / 2 and the 2 p 1 / 2 levels of the…

## 7 Citations

### New Insights into the Lamb Shift: The Spectral Density of the Shift

- PhysicsPhysics
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In an atom, the interaction of a bound electron with the vacuum fluctuations of the electromagnetic field leads to complex shifts in the energy levels of the electron, with the real part of the shift…

### THE QUEST FOR THE PROTON CHARGE RADIUS

- Physics
- 2021

A slight anomaly in optical spectra of the hydrogen atom led Willis E. Lamb to the search for the proton size. As a result, he found the shift of the 2S1/2 level, the first experimental demonstration…

### Effective Hamiltonians in Nonrelativistic Quantum Electrodynamics

- PhysicsSymmetry
- 2021

This paper considers some second-order effective Hamiltonians describing the interaction of the quantum electromagnetic field with atoms or molecules in the nonrelativistic limit, and indicates that different expressions can be obtained, each of them with a well-defined range of validity and possible applications.

### Dynamical Symmetries of the H Atom, One of the Most Important Tools of Modern Physics: SO(4) to SO(4, 2), Background, Theory, and Use in Calculating Radiative Shifts

- PhysicsSymmetry
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A clearer, integrated presentation of the symmetries of the Schrodinger hydrogen atom is presented, providing explicit expressions for all of the manifestly Hermitian generators in terms of position and momenta operators in a Cartesian space.

### Quantum bath engineering of a high impedance microwave mode through quasiparticle tunneling

- PhysicsNature Communications
- 2022

In microwave quantum optics, dissipation usually corresponds to quantum jumps, where photons are lost one by one. Here we demonstrate a new approach to dissipation engineering. By coupling a high…

### The Analytical Modeling of Nuclear Size Effect on Relativistic Electron in Hydrogen Atom

- Physics
- 2020

Article history: Received 27April 2020 Revised 19 June 2020 Accepted 22 June 2020 Available online 31August 2020 The effects of relativistic motion, the spin-orbit interaction and Zitterbewegung of…

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