Imaging superconducting vortex cores and lattices with a scanning tunneling microscope
The observation of vortices in superconductors was a major breakthrough in developing the
conceptual background for superconducting applications. Each vortex carries a flux …
conceptual background for superconducting applications. Each vortex carries a flux …
Relieving the Hubble tension with primordial magnetic fields
K Jedamzik, L Pogosian - Physical Review Letters, 2020 - APS
The standard cosmological model determined from the accurate cosmic microwave
background measurements made by the Planck satellite implies a value of the Hubble …
background measurements made by the Planck satellite implies a value of the Hubble …
Stringent limit on primordial magnetic fields from the cosmic microwave background radiation
K Jedamzik, A Saveliev - Physical review letters, 2019 - APS
Primordial magnetic fields (PMFs), being present before the epoch of cosmic recombination,
induce small-scale baryonic density fluctuations. These inhomogeneities lead to an …
induce small-scale baryonic density fluctuations. These inhomogeneities lead to an …
Early or phantom dark energy, self-interacting, extra, or massive neutrinos, primordial magnetic fields, or a curved universe: An exploration of possible solutions to the …
HG Escudero, JL Kuo, RE Keeley, KN Abazajian - Physical Review D, 2022 - APS
In this paper we explore the existing tensions in the local cosmological expansion rate, H 0,
and amplitude of the clustering of the large-scale structure at 8 h-1 Mpc, σ 8, as well as …
and amplitude of the clustering of the large-scale structure at 8 h-1 Mpc, σ 8, as well as …
Primordial magnetic field generation via primordial black hole disks
T Papanikolaou, KN Gourgouliatos - Physical Review D, 2023 - APS
Large-scale primordial magnetic fields (PMFs) threading the intergalactic medium are
observed ubiquitously in the Universe playing a key role in the cosmic evolution. Their origin …
observed ubiquitously in the Universe playing a key role in the cosmic evolution. Their origin …
Exploration of the role of disorder and the behaviour of the surface state in the three-dimensional topological insulator—Bi2Se3
Here we present an overview of some of our recent experimental investigation on the high
conducting topologically protected surface state properties of a 3D topological insulator (TI) …
conducting topologically protected surface state properties of a 3D topological insulator (TI) …
Challenges and transformative opportunities in superconductor vortex physics
In superconductors, the motion of vortices introduces unwanted dissipation that is disruptive
to applications. Fortunately, material defects can immobilize vortices, acting as vortex …
to applications. Fortunately, material defects can immobilize vortices, acting as vortex …
Gravitational radiation from primordial helical inverse cascade magnetohydrodynamic turbulence
T Kahniashvili, L Campanelli, G Gogoberidze… - Physical Review D …, 2008 - APS
We consider the generation of gravitational waves by primordial helical inverse-cascade
magnetohydrodynamic (MHD) turbulence produced by bubble collisions at the electroweak …
magnetohydrodynamic (MHD) turbulence produced by bubble collisions at the electroweak …
Constraining supermassive primordial black holes with magnetically induced gravitational waves
T Papanikolaou, KN Gourgouliatos - Physical Review D, 2023 - APS
Primordial black holes (PBHs) can answer a plethora of cosmic conundrums, including the
origin of cosmic magnetic fields. In particular, supermassive PBHs with masses M PBH> 10 …
origin of cosmic magnetic fields. In particular, supermassive PBHs with masses M PBH> 10 …
Evolution of magnetic fields in freely decaying magnetohydrodynamic turbulence
L Campanelli - Physical review letters, 2007 - APS
We study the evolution of magnetic fields in freely decaying magnetohydrodynamic
turbulence. By quasilinearizing the Navier-Stokes equation, we solve analytically the …
turbulence. By quasilinearizing the Navier-Stokes equation, we solve analytically the …