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This paper revisits the quantum mechanics for one photon from the modern viewpoint and by the geometrical method. Especially, besides the ordinary (rectangular) momentum representation, we provide an explicit derivation for the other two…

Quantum Physics · Physics 2007-05-23 Yapeng Hu , Weigang Qiu , Hongbao Zhang

It has been understood since 1897 that accelerating charges must emit electromagnetic radiation. Cyclotron radiation, the particular form of radiation emitted by an electron orbiting in a magnetic field, was first derived in 1904. Despite…

We study theoretically the magnetic field effect on a neutral, but polarizable exciton confined in quantum-ring structures. For excitons with a nonzero dipole moment, a novel magnetic interference effect occurs: The ground state of an…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 A. O. Govorov , A. V. Kalameitsev , R. Warburton , K. Karrai , S. E. Ulloa

We consider the quantum mechanics of an electron confined to move on an infinite cylinder in the presence of a uniform radial magnetic field. This problem is in certain ways very similar to the corresponding problem on the infinite plane.…

Mathematical Physics · Physics 2015-06-26 G. Date , P. P. Divakaran

The theoretical prospects for quantum electrodynamics with Lorentz-violating operators of mass dimensions up to six are revisited in this work. The dominant effects due to Lorentz and CPT violation are studied in measurements of magnetic…

High Energy Physics - Phenomenology · Physics 2019-10-02 Yunhua Ding

The different types of orbits in the classical problem of two particles with equal masses and opposite charges on a plane under the influence of a constant orthogonal magnetic field are classified. The equations of the system are reduced to…

Mathematical Physics · Physics 2020-02-03 M. A. Gonzalez Leon , J. Mateos Guilarte , M. de la Torre Mayado

We describe a method to perform a single quantum measurement of an arbitrary observable of a single ion moving in a harmonic potential. We illustrate the measurement procedure with explicit examples, namely the position and phase…

Quantum Physics · Physics 2007-05-23 S. A. Gardiner , J. I. Cirac , P. Zoller

Elementary particle physics is a fascinating field of modern physics investigating the basic constituents of matter and their interactions. In the experiments large accelerators and very sophisticated detector systems are usually used.…

Physics Education · Physics 2018-05-09 D. Bosnar , Z. Matić , I. Friščić , P. Žugec , H. Janči

Two particles that are entangled with respect to continuous variables such as position and momentum exhibit a variety of nonclassical features. First, measurement of one particle projects the other particle into the state that is the…

Quantum Physics · Physics 2007-05-23 Seth Lloyd , Jeffrey H. Shapiro , N. C. Wong

A commercial, position-sensitive ion detector was used for the first time for the time-of-flight ion-cyclotron resonance detection technique in Penning trap mass spectrometry. In this work, the characteristics of the detector and its…

Nuclear Experiment · Physics 2009-09-10 G. Eitel , M. Block , A. Czasch , M. Dworschak , S. George , O. Jagutzki , J. Ketelaer , J. Ketter , Sz. Nagy , D. Rodriguez , C. Smorra , K. Blaum

We present a new platform facilitating quantum logic control of polar molecular ions in a segmented ring ion trap, paving the way for precision measurements. This approach focuses on achieving near-unity state preparation and detection, as…

Atomic Physics · Physics 2023-07-27 Yan Zhou , Joshua O. Island , Matt Grau

Quantum measurements of physical quantities are usually described as ideal measurements. However, only a few measurements fulfil the conditions of ideal measurements. The aim of the present work is to describe real position measurements…

Quantum Physics · Physics 2019-01-17 Klaus Wick

We study angular momentum of the electron stored in its electric and magnetic fields. We use for this purpose quantum electrodynamics in the covariant gauge. We show that a finite one-loop result for such angular momentum can be obtained…

High Energy Physics - Phenomenology · Physics 2019-11-21 Bogdan Damski

Polaritons are quasi-particles originating from the coupling of light with matter that demonstrated quantum phenomena at the many-particle mesoscopic level, such as BEC and superfluidity. A highly sought and long-time missing feature of…

The Positronium (Ps) system, a bound state of an electron and a positron, is suitable for testing the predictions of quantum electrodynamics (QED), since its properties can be perturbatively calculated to high accuracy and, unlike the…

Nuclear Experiment · Physics 2021-12-21 Elena Perez del Rio

In particle therapy with protons a cyclotron is one of the most used particle accelerators. Here it will be explained how a cyclotron works, some beam dynamics aspects, its major subsystems, as well as the advantages and disadvantages of a…

Medical Physics · Physics 2018-04-24 Jacobus Maarten Schippers

Chameleon and symmetron theories serve as archetypal models for how light scalar fields can couple to matter with gravitational strength or greater, yet evade the stringent constraints from classical tests of gravity on Earth and in the…

High Energy Physics - Phenomenology · Physics 2018-05-01 Philippe Brax , Anne-Christine Davis , Benjamin Elder , Leong Khim Wong

Magneto-polaronic effects are considered in electron transport through a single-level vibrating quantum dot subjected to a transverse (to the current flow) magnetic field. It is shown that the effects are most pronounced in the regime of…

Mesoscale and Nanoscale Physics · Physics 2012-11-13 G. A. Skorobagatko , S. I. Kulinich , I. V. Krive , R. I. Shekhter , M. Jonson

Search for the Electric Dipole Moment of nuclear particles is at the forefront of incessant quest for CP violation beyond Standard Model. The ultimate target is to reach a sensitivity to the electric dipole moment of neutrons, protons,…

High Energy Physics - Phenomenology · Physics 2020-08-07 N. N. Nikolaev , S. N. Vergeles

The Baryon Antibaryon Symmetry Experiment (BASE) aims at performing a stringent test of the combined charge parity and time reversal (CPT) symmetry by comparing the magnetic moments of the proton and the antiproton with high precision.…