The theory of quantum mechanics is well supported by experiments. Now, however, a thought experiment by ETH physicists yields unexpected contradictions. These findings raise some fundamental questions -- and they're polarising experts.
One of the challenges in cancer research is improving the delivery of chemo drugs to enhance their efficacy while decreasing the risk of side effects. In a new study published in EPJ E, Scientists from Argentina perform a theoretical prediction of adsorption of a well-known chemo drug onto active carbon with aluminium inclusions, to show its potential as an oral chemotherapy delivery capsule.
RUDN University researchers have developed a mathematical method that allowed to solve the quantum Coulomb three body problem for bound states with high accuracy. They also showed that previous calculations performed by a group of Japanese scientists is incorrect. The work will help to calculate the trajectories of quantum particles motion in space accurately. Its results will be useful in solving fundamental problems of physics. The paper was published in the journal Physical Review A.
An experiment at the University of Nebraska-Lincoln demonstrated how the application of intense light boosts electrons to their highest attainable speeds.
Physicists report in Nature magazine how they have sent and controlled a spin current across longer distances than ever before -- and in a material that was previously considered unsuitable for the task.
Scientists at Tokyo Institute of Technology have theoretically demonstrated that special tetrahedron nanostructures composed of certain metals have a higher degree of symmetry than the geometrical symmetry of spherical atoms. Nanomaterials with unique and unprecedented electrical and magnetic properties arising from this symmetry will be developed and used for next-generation electronic devices.
Scientists have developed a topological photonic chip to process quantum information, promising a more robust option for scalable quantum computers. The research team, led by RMIT University's Dr Alberto Peruzzo, has for the first time demonstrated that quantum information can be encoded, processed and transferred at a distance with topological circuits on the chip. The research is published in Science Advances.
Printed electronics use standard printing techniques to manufacture electronic devices on different substrates like glass, plastic films, and paper. Interest in this area is growing because of the potential to create cheaper circuits more efficiently than conventional methods. A new study published in AIP Advances provides insights into the processing of copper nanoparticle ink with green laser light.
The properties of quantum mechanics can be utilized, for example, in technology and encrypting messages, but the disadvantage is the occasional disappearing of information. For the first time, a research group consisting of Finnish and Chinese scientists has found a way to fully control the information escaping the qubit.
An international team of researchers led by Princeton physicist Zahid Hasan has discovered a novel quantum state of matter whose symmetry can be manipulated at will by an external magnetic field. The methods demonstrated in a series of experiments could be useful for exploring materials for next-generation nano- or quantum technologies.