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Physical footprints of intrinsic sign problems
The sign problem is a widespread numerical hurdle preventing us from simulating the equilibrium behaviour of many interesting models, most notably the Hubbard model. Research aimed at solving the sign...
Jul 21, 2020
Cosmology from the SDSS
On Monday July 20th, we announced the final results from extended Baryon Oscillation Spectroscopic Survey (eBOSS), the last large-scale structure galaxy survey to be undertaken within the umbrella of the...
Jul 28, 2020
Managing the COVID-19 Pandemic across Geography and Demography
What factors drive the growth and decay of a pandemic? Can a study of community differences (in demographics, settlement, mobility, weather, and epidemic history) allow these factors to be identified...
Jul 29, 2020
Non-Hermitian two-level systems with imaginary components in Electronics
The systems having real spectra without being Hermitian are in expansion today in many fields of physics. The most investigated are Parity-Time Symmetric systems. Their Hamiltonians commute with the joint...
Jul 31, 2020
Temperature enhancement of thermal Hall conductance quantization
The quest for non-Abelian quasiparticles has inspired decades of experimental and theoretical efforts. Among their clearest signatures is a thermal Hall conductance with quantized half-integer value. Such a value was...
Aug 04, 2020
The Neutrino Magnetic Moment Portal: Cosmology, Astrophysics, and Direct Detection
We revisit the physics of neutrino magnetic moments, focusing in particular on the case where the right-handed, or sterile, neutrinos are heavier (up to several MeV) than the left-handed Standard...
Aug 11, 2020
Stochasticity and Axion Direct Detection
The ultralight axion-like particle remains a compelling dark matter candidate. If such a particle constitutes dark matter, it will generate a classical field that oscillates at the compton frequency but...
Sep 01, 2020
Stars stripped in binaries: from cosmic reionization to gravitational waves
Most massive stars spend their lives in so close orbit with a companion star that severe mass exchange or even coalescence is inevitable as the stars evolve and swell. A...
Sep 10, 2020
Advances in numerical techniques for spinfoam amplitudes with applications
The computation of transition amplitudes in Loop Quantum Gravity is still a hard task, especially without resorting to large-spins approximations. In Marseille we are actively developing a C library (...
Sep 10, 2020