Optical angular momentum in atomic transitions: a paradox

被引：10

作者：

Barnett, Stephen M. ^{[1
]}

Speirits, Fiona C. ^{[1
]}

Babiker, Mohamed ^{[2
]}

机构：

[1] Univ Glasgow, Sch Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland

[2] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2022年 / 55卷 / 23期

关键词：

optical angular momentum; atomic transitions; quadrupole transitions; ROTATION;

D O I：

10.1088/1751-8121/ac6bd1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Stated simply the paradox is as follows: it is clear that the orbital angular momentum of a light beam in its direction of propagation is an intrinsic quantity, and therefore has the same value everywhere in the beam. How then can a Gaussian beam, with precisely zero orbital angular momentum, drive a (single-photon) quadrupole transition which requires the transfer of angular momentum 2PLANCK CONSTANT OVER TWO PI to an absorbing atom?

引用

页数：13

共 50 条

[21] Optical Momentum, Spin, and Angular Momentum in Dispersive Media
Bliokh, Konstantin Y.
Bekshaev, Aleksandr Y.
Nori, Franco
PHYSICAL REVIEW LETTERS, 2017, 119 (07)
[22] Field angular momentum in atomic sized systems
Dryzek, J
Singleton, D
AMERICAN JOURNAL OF PHYSICS, 1999, 67 (10) : 930 - 931
[23] ANGULAR-MOMENTUM OF TRAPPED ATOMIC PARTICLES
WINELAND, DJ
BOLLINGER, JJ
ITANO, WM
PRESTAGE, JD
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1985, 2 (11) : 1721 - 1730
[24] Biaxial spatial orientation of atomic angular momentum
Milner, V
Prior, Y
PHYSICAL REVIEW A, 1999, 59 (03): : R1738 - R1741
[25] Optical superchirality and electromagnetic angular momentum
Andrews, David L.
Coles, Matt M.
COMPLEX LIGHT AND OPTICAL FORCES VI, 2012, 8274
[26] Orbital angular momentum in optical manipulations
Li, Manman
Yan, Shaohui
Zhang, Yanan
Zhou, Yuan
Yao, Baoli
JOURNAL OF OPTICS, 2022, 24 (11)
[27] Optical angular momentum in a rotating frame
Speirits, Fiona C.
Lavery, Martin P. J.
Padgett, Miles J.
Barnett, Stephen M.
OPTICS LETTERS, 2014, 39 (10) : 2944 - 2946
[28] Angular momentum of optical vortex arrays
Courtial, J
Zambrini, R
Dennis, MR
Vasnetsov, M
OPTICS EXPRESS, 2006, 14 (02): : 938 - 949
[29] Angular momentum of light in an optical nanofiber
Le Kien, Fam
Balykin, V. I.
Hakuta, K.
PHYSICAL REVIEW A, 2006, 73 (05):
[30] Optical angular-momentum flux
Barnett, SM
JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, 2002, 4 (02) : S7 - S16

← 1 2 3 4 5 →