- The University of SydneyAU578 papers
- Australian National UniversityAU542 papers
- Commonwealth Scientific and Industrial Research OrganisationAU328 papers
- Centre National de la Recherche ScientifiqueFR319 papers
- Macquarie UniversityAU309 papers
- Data61AU267 papers
- University of CambridgeGB253 papers
- Australian Astronomical ObservatoryAU246 papers
- Centre for Quantum Computation and Communication TechnologyAU243 papers
- Australian Defence Force AcademyAU233 papers
- ARC Centre of Excellence for All-sky AstrophysicsAU232 papers
- Swinburne University of TechnologyAU209 papers
51 papers · 1 filter
Local magnetic impurities in the 2D quantum Heisenberg antiferromagnet
V. N. Kotov, J. Oitmaa, O. Sushkov
We consider the two-dimensional (2D) quantum Heisenberg antiferromagnet at zero temperature with two types of locally frustrating perturbations - an isolated ferromagnetic bond (FM…
Novel approach to description of spin liquid phases in low-dimensional quantum antiferromagnets
V. N. Kotov, O. Sushkov, Zheng Weihong +1
We consider quantum spin systems with dimerization, which at strong coupling have singlet ground states. To account for strong correlations, the excitations are described as dilute…
Electron detachment from negative ions in bichromatic laser field
M. Yu. Kuchiev, V. N. Ostrovsky
Negative ion detachment in two-colour laser field is considered within the recent modification of Keldysh model which makes it quantitatively reliable. The general approach is illu…
Constrained Dynamics for Quantum Mechanics I. Restricting a Particle to a Surface
Hendrik Grundling, C. A. Hurst
We analyze constrained quantum systems where the dynamics do not preserve the constraints. This is done in particular for the restriction of a quantum particle in Euclidean n-space…
New Limits on the Possible Variation of Physical Constants
M. J. Drinkwater, J. K. Webb, J. D. Barrow +1
Recent detections of high-redshift absorption by both atomic hydrogen and molecular gas in the radio spectra of quasars have provided a powerful tool to measure possible temporal a…
The Calderón Commutator Along a Parabola
Anthony Carbery, Steve Hofmann, James Wright
We introduce an analogue of Calderón's first commutator along a parabola, and establish its boundedness under essentially sharp hypotheses.