Feynman diagrams versus Fermi-gas Feynman emulator

Details Feynman diagrams versus Fermi-gas Feynman emulator Feynman diagrams versus Fermi-gas Feynman emulator

2011-10-17

arxiv.org/abs/1110.3747v2

Physics

Condensed Matter

Quantum Gases

Scientific paper

10.1038/NPHYS2273

Precise understanding of strongly interacting fermions, from electrons in modern materials to nuclear matter, presents a major goal in modern physics. However, the theoretical description of interacting Fermi systems is usually plagued by the intricate quantum statistics at play. Here we present a cross-validation between a new theoretical approach, Bold Diagrammatic Monte Carlo (BDMC), and precision experiments on ultra-cold atoms. Specifically, we compute and measure with unprecedented accuracy the normal-state equation of state of the unitary gas, a prototypical example of a strongly correlated fermionic system. Excellent agreement demonstrates that a series of Feynman diagrams can be controllably resummed in a non-perturbative regime using BDMC. This opens the door to the solution of some of the most challenging problems across many areas of physics.

Affiliated with

Also associated with

No associations

Rating

Feynman diagrams versus Fermi-gas Feynman emulator does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Feynman diagrams versus Fermi-gas Feynman emulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feynman diagrams versus Fermi-gas Feynman emulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-319016