Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

QCD at finite isospin density.

D T Son¹, M A Stephanov

¹Physics Department, Columbia University, New York, NY 10027, USA.

Physical Review Letters

|February 15, 2001

Summary

Quantum Chromodynamics (QCD) at finite isospin chemical potential can be studied without the fermion sign problem. This research reveals a smooth transition from hadron to quark matter, impacting the QCD phase diagram.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

[D4 duodenal injury: a case report and literature review].

Khirurgiia·2025

Same author

Potential health impacts of increasing the cigarette tax in Viet Nam.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2018

Same author

Chiral kinetic theory.

Physical review letters·2012

Same author

Sign of kurtosis near the QCD critical point.

Physical review letters·2011

Same author

Hydrodynamics of liquids of chiral molecules and suspensions containing chiral particles.

Physical review letters·2010

Same author

Non-Gaussian fluctuations near the QCD critical point.

Physical review letters·2009

Area of Science:

* Theoretical Physics
* Quantum Chromodynamics (QCD)
* High-Energy Nuclear Physics

Background:

* Studying Quantum Chromodynamics (QCD) at finite isospin chemical potential (μI) is challenging due to the fermion sign problem in lattice simulations.
* Understanding the phase diagram of strongly interacting matter is crucial for nuclear physics and astrophysics.

Purpose of the Study:

* To analytically solve QCD at finite isospin chemical potential (μI).
* To investigate the phase transitions and ground states of QCD matter under varying isospin densities.
* To explore the connection between hadron matter and quark matter.

Main Methods:

* Analytical solutions in two limits: low μI using chiral perturbation theory and high μI using perturbative QCD.
* Analysis of ground states, including pion condensation and Cooper pairing in a Fermi liquid.

Main Results:

* At low isospin densities, the ground state is a pion condensate.
* At high isospin densities, the ground state is a Fermi liquid with Cooper pairing, where pairs share pion quantum numbers.
* The transition from hadron matter to quark matter is conjectured to be smooth.

Conclusions:

* The study provides a smooth transition mechanism between hadron and quark matter, consistent with existing tests.
* Results indicate a complex phase diagram for QCD involving temperature, isospin chemical potential, and baryon number chemical potential.
* The findings offer insights into the behavior of strongly interacting matter under extreme conditions.

Related Experiment Videos