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Spin and Orbital Angular Momentum of Photons
Europhysics Letters (EPL), 1994We consider the separation of the total angular momentum of the electromagnetic field into a "spin" and an "orbital" part. Though this separation is normally considered to be unphysical and not observable, we argue that both members in the separation are separately measurable quantities.
S J van Enk, G Nienhuis
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2019
In this chapter we put together everything we have studied so far—Mathematica, quantum mechanics, computational bases, units—to study simple quantum systems. We start our explorations of quantum mechanics with the description of angular momentum. The reason for this choice is that, in contrast to the mechanically more intuitive linear motion (Chap. 4),
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In this chapter we put together everything we have studied so far—Mathematica, quantum mechanics, computational bases, units—to study simple quantum systems. We start our explorations of quantum mechanics with the description of angular momentum. The reason for this choice is that, in contrast to the mechanically more intuitive linear motion (Chap. 4),
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Spin and orbital angular momentum
Europhysics Letters (EPL), 2004It is shown that the existence of a charge-neutral, idealized smooth mesoscopic rigid sphere, characterized by eleven properties, implies a relation between spin and orbital angular momentum. In addition to these properties, this correspondence is based on elements of group theory, conservation of angular momentum, and an ansatz which describes the ...
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Angular Momentum, Spin and Particle Categories
2013By use of its commutator algebra, properties of the quantum mechanical angular momentum operator are derived. The action of a magnetic field in the Hamilton operator of a single particle is considered and fundamentals of magnetism and the Aharanov–Bohm effect including experimental examples from nanoelectronics are presented.
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On the spin angular momentum of mesons
Physica, 1939Zusammenfassung Eine allgemeine Definition fu¨r den Spindrehimpuls und die Spin-momentdichte willku¨rlicher Felder wird gegeben. Angewandt auf den Fall des Meson-Feldes ergibt sich fu¨r das Gesamt-Spin moment genau der Ausdruck von Proca; jedoch trifft die Behauptung von Durandin und Erschow, dass der Zeitmittelwert dieses Momentes bei Quantisierung ...
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Operators for Angular Momentum and Spin
1984When the eigenstates for a mode, or modes, of motion in a given system form a simple sequence or ladder, these states may be interconverted by applying an operator that moves the system up or down the ladder. In Section 5.7, such operators were constructed for the states of a harmonic oscillator; in Section 5.11, step-up and step-down operators were ...
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Orbital Angular Momentum and Spin
1999We have seen that, in nonrelativistic quantum mechanics, the angular momentum operator is the generator of rotations and commutes with the Hamiltonians of rotationally invariant (i. e., spherically symmetric) systems1. It thus plays a special role for such systems. For this reason, as a preliminary to the next topic — the Coulomb potential — we present
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