Chiral Quantum Textures

Quantum fluctuations stabilize skyrmion textures

We study the quantum spin waves associated to skyrmion textures. We show that the zero-point energy associated to the quantum spin fluctuations of a noncollinear spin texture produce Casimir-like magnetic fields. We study the effect of these Casimir fields on the topologically protected noncollinear spin textures known as skyrmions. In a Heisenberg model with Dzyalonshinkii-Moriya interactions,...

Chiral Smectic C Liquid Crystal, Thick Sample Textures

The texture of ferroelectric chiral smectic liquid crystal confined between two aligning plates is studied in the case of thick samples i-esamples whose thickness is higher than the helical pitch. The helical texture with periodic unwinding discfination lines

Chiral hedgehog textures in two-dimensional XY-like ordered domains

The textures associated with a point defect centered in a circular domain of a thin film with XY-like ordering have been analyzed. The family of equilibrium textures, both stable and metastable, can be classified by a new radial topological number in addition to the winding number of the defect. Chiral textures are supported in an achiral system as a result of spontaneously broken chiral symmet...

Chiral Currents in Quantum Hall

Physicists at Bielefeld University and the Arctic University of Norway in Tromsø have developed a photonic chip that makes it possible to carry out super-resolution light microscopy, also called 'nanoscopy,' with conventional microscopes. In nanoscopy, the position of single fluorescent molecules can be determined with a precision of just a few nano-meters, that is, to a millionth of a millimet...

Observation of Unconventional Quantum Spin Textures in Topologically Ordered Materials