Testing non-commutative QED, constructing non-commutative MHD

详细信息    查看全文

• 作者：Guralnik ; Z. ; Jackiw ; R. ; Pi ; S.Y. ; Polychronakos ; A.P.
• 刊名：Physics Letters B
• 出版年：2001
• 出版时间：October 4, 2001
• 年：2001
• 卷：517
• 期：3-4
• 页码：450-456
• 全文大小：91.3 K

文摘

The effect of non-commutativity on electromagnetic waves violates Lorentz invariance: in the presence of a background magnetic induction field b, the velocity for propagation transverse to b differs from c, while propagation along b is unchanged. In principle, this allows a test by the Michelson–Morley interference method. We also study non-commutativity in another context, by constructing the theory describing a charged fluid in a strong magnetic field, which forces the fluid particles into their lowest Landau level, and renders the fluid dynamics non-commutative, with a Moyal product determined by the background magnetic field.