Published in Communications Physics
Nuclear magnetic resonance is a technique ubiquitous in a diverse range of scientific and clinical fields. However, it can be sensitive to small deviations in the driving magnetic fields, which can easily disrupt measurement accuracy. Here, the authors develop a hybrid-state free precession approach which demonstrates greater robustness against dev...
Published in Communications Physics
While the Deffuant-Weisbuch model, one of the paradigmatic models of opinion dynamics, represents homophily through pairwise interactions, many real world interactions are not pairwise but happen in groups. Here, the authors take a numerical approach and extend the Deffuant model to hypergraphs of different topology, and show how introducing higher...
Published in Communications Physics
Coherent perfect absorption allows control of light, with wide ranging applications. Here, this concept is experimentally implemented in the presence of non-linearities, where the formation of a self-induced exceptional point coherent perfect absorption mechanism is identified.
Published in Communications Physics
Modulation instability refers to the sensitivity of dispersive, weakly nonlinear systems to small perturbations and may be used as a source of optical gain. Here, the phase-sensitive properties of modulation instability with harmonic seeding in passive fiber resonators are investigated in theory and experiments.
Published in Communications Physics
Group interactions can dramatically alter social contagion dynamics and lead to the emergence of new phenomena like abrupt transitions and critical mass effects. The authors develop an approximate master equation framework to analytically describe contagion in heterogeneous hypergraphs and study the impact of large influential groups in seeding and...
Published in Communications Physics
While control theory for optimal navigation is relevant across scales, from aeronautics to targeted drug delivery, the role of thermal fluctuations and hydrodynamic interactions with interfaces, walls and obstacles at the microscale remains an open question. Here, the authors explore optimal microswimming in the presence of walls or obstacles, and ...
Published in Communications Physics
Manipulation of the magnetization is of major importance in spintronics. The authors demonstrate that an electric field triggers a transverse flow of orbital moment: the so-called orbital Hall effect. This enables the efficient magnetization control, holding the promise for fast and miniaturized memories and sensors.
Published in Communications Physics
Quantum spin liquids describe a system where any type of long-range or local ordering is absent even at absolute zero but despite prominent theoretical studies definitive experimental evidence of such a system is difficult to obtain. Here, by analysing the complex permittivity of LiCuVO4 the authors find evidence of chiral solitons suggesting the p...
Published in Communications Physics
The ability to realize quantum systems for quantum technology relies on protocols capable of generating robust quantum states. The authors propose two protocols to generate arbitrary NOON states, one is deterministic, the other is probabilistic, and discuss their implementation in ultra-cold atom systems.
Published in Communications Physics
The interplay between relativity and the uncertainty principle predicts the production of photons from vacuum by accelerating photodetectors. The authors propose a method to enhance photon-emission from a microwave cavity vacuum by using many photodetectors undergoing oscillatory motion within the cavity and show that when a critical detector numbe...
