In a modern viewpoint relativistic quantum field theory is an emergent phenomenon arising
in the low-energy corner of the physical fermionic vacuum–the medium, whose nature …

There are fundamental relations between three vast areas of physics: particle physics,
cosmology and condensed matter physics. The fundamental links between the first two …

Understanding the behavior of quantized vortices is essential to gaining insight into diverse
superfluid phenomena, from critical-current densities in superconductors to quantum …

Nearly five decades have elapsed since the seminal 1966 paper of PW Anderson on the
flow of superfluid helium, He 4 at that time. Some of his “considerations”—the role of the …

We report the observation of spin domain walls bounded by half-quantum vortices (HQVs) in
a spin-1 Bose-Einstein condensate with antiferromagnetic interactions. A spinor condensate …

Symmetries of the physical world have guided formulation of fundamental laws, including
relativistic quantum field theory and understanding of possible states of matter. Topological …

The discovery of nonlocal order parameters in real space provides a feasible scheme for
studying dynamical critical behavior in topological systems. We study the critical phenomena …

Among vortex structures identified so far in superfluid He 3-B, the most common are the A-
phase-core and double-core vortices. According to earlier numerical calculations, the …

When a symmetry gets spontaneously broken in a phase transition, topological defects are
typically formed. The theoretical picture of how this happens in a breakdown of a global …

The different superfluid phases of 3 He are described by p-wave order parameters that
include anisotropy axes both in the orbital and spin spaces. The anisotropy axes …