Skip to main content

Shear viscosity of the quark matter

Buy Article:

$43.90 plus tax (Refund Policy)

Abstract:

We discuss shear viscosity of the quark matter by using the Kubo formula and the Nambu–Jona–Lasinio model. It is shown that the leading term of 1/N expansion for the shear viscosity is equivalent to the quasi-particle random phase approximation. Using this approximation, we obtain a formula that the shear viscosity is expressed by the quadratic form of the quark spectral function in the chiral symmetric phase. If we assume the Breit–Wigner type for the spectral function, the shear viscosity is evaluated as a function of the imaginary part of the quark self-energy, which is related to the mean-free path of the quark. It is pointed out that the quark matter seems to be a perfect liquid for the mean free path <2 fm.

Document Type: Research Article

DOI: http://dx.doi.org/10.1088/0954-3899/35/3/035003

Publication date: March 1, 2008

iop/jphysg/2008/00000035/00000003/art035003
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more