Abstract: The accuracy of atomic clocks has improved a thousandfold over the last 15 years, driven by improvements in ultrastable lasers, quantum control, and our understanding of atomic interactions.

# Events Archive

## Special Seminar

### Special Seminar | Yakir Aharonov, Chapman University | "Time Symmetric Formulation of Quantum Theory"

### Next-generation atomic clocks - G. Edward Marti, JILA

### New quantum phases of matter in strongly correlated and spin-orbit-coupled metals - John Harter, Caltech

Strong interactions between electrons are known to drive metallic systems toward a variety of well-known symmetry-broken phases, including superconducting, electronic liquid crystalline, and charge- and spin-density wave ordered states. In contrast, the electronic instabilities of correlated metals with strong spin-orbit coupling have only...

### Physics Group Meeting | Matias Zaldarriaga, Faculty, School of Natural Sciences, IAS | “Discussion of MOND and LCDM”

I will review the phenomenological successes of MOND on the scale of galaxies. I will discuss its failure on cosmological scales. These large scale problems have been understood for decades, are very robust and their origin can be easily understood. On the scales of galaxies, rotation curves are well described by the MOND force law without any...

### Probing Topological Valley Physics in Bilayer Graphene - Long Ju, Cornell University

Graphene has been a model solid state system where novel quantum phenomena emerge from the interplay between symmetry, band topology and reduced dimensionality. In particular, AB-stacked bilayer graphene has a unique bandstructure with an electrically tunable bandgap and a valley-dependent Berry phase.

### The Precision Frontier Seminar | Ken Van Tilburg, Member, School of Natural Sciences, IAS; NYU | “Searches for Light Scalar Particles"

### Ultracold Fermi Gases: From Strongly Interacting Superfluids to Mott Insulators. - Lawrence Cheuk - MIT