How the Quark Number fluctuates in QCD at small chemical potential

M. P. Lombardo; K. Splittorff; J. J.M. Verbaarschot

How the Quark Number fluctuates in QCD at small chemical potential

M. P. Lombardo
, K. Splittorff
, J. J.M. Verbaarschot

Physics and Astronomy

National Institute for Nuclear Physics
University of Copenhagen

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

We discuss the distribution of the quark number over the gauge fields for QCD at nonzero quark chemical potential. As the quark number operator is non-hermitian, the distribution is over the complex plane. Moreover, because of the fermion determinant, the distribution is not real and positive. The computation is carried out within leading order chiral perturbation theory and gives direct insight into the delicate cancellations that take place in contributions to the total baryon number.

Original language	English
Journal	Proceedings of Science
Volume	105
State	Published - 2010
Event	28th International Symposium on Lattice Field Theory, Lattice 2010 - Villasimius, Sardinia, Italy Duration: Jun 14 2010 → Jun 19 2010

Cite this

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title = "How the Quark Number fluctuates in QCD at small chemical potential",

abstract = "We discuss the distribution of the quark number over the gauge fields for QCD at nonzero quark chemical potential. As the quark number operator is non-hermitian, the distribution is over the complex plane. Moreover, because of the fermion determinant, the distribution is not real and positive. The computation is carried out within leading order chiral perturbation theory and gives direct insight into the delicate cancellations that take place in contributions to the total baryon number.",

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AU - Lombardo, M. P.

AU - Splittorff, K.

AU - Verbaarschot, J. J.M.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

PY - 2010

Y1 - 2010

N2 - We discuss the distribution of the quark number over the gauge fields for QCD at nonzero quark chemical potential. As the quark number operator is non-hermitian, the distribution is over the complex plane. Moreover, because of the fermion determinant, the distribution is not real and positive. The computation is carried out within leading order chiral perturbation theory and gives direct insight into the delicate cancellations that take place in contributions to the total baryon number.

AB - We discuss the distribution of the quark number over the gauge fields for QCD at nonzero quark chemical potential. As the quark number operator is non-hermitian, the distribution is over the complex plane. Moreover, because of the fermion determinant, the distribution is not real and positive. The computation is carried out within leading order chiral perturbation theory and gives direct insight into the delicate cancellations that take place in contributions to the total baryon number.

UR - https://www.scopus.com/pages/publications/85054706001

M3 - Conference article

AN - SCOPUS:85054706001

SN - 1824-8039

VL - 105

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 28th International Symposium on Lattice Field Theory, Lattice 2010

Y2 - 14 June 2010 through 19 June 2010

ER -

How the Quark Number fluctuates in QCD at small chemical potential

Abstract

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