Articles from Science Daily Physics News

One-way track for microwaves based on mechanical interference

Researchers use interference in the motion of a micrometer-size drum to route microwave signals in a single direction.

Cost effective quantum moves a step closer

Researchers have taken an important step towards enabling quantum networks to be cost-effective and truly secure from attack. The experiments prove the viability of a measurement-device-independent quantum key distribution (QKD) system, based on readily available hardware.

Novel strategy for chirality controlled synthesis of single-walled carbon nanotubes

Researchers have developed a novel strategy for controlling chirality of single-walled carbon nanotubes.

Optical, electrical bistability study sheds light on next-gen high speed data transfer

Today, electrical bistable devices are the foundation of digital electronics, serving as building blocks of switches, logic gates and memories in computer systems. However, the bandwidth of these electronic computers is limited by the signal delay of time constants important to electronic logic operations. In an attempt to mitigate these problems, scientists have considered the development of an optical digital computer, and one team has gone so far as to demonstrate the optical and electrical bistability for switching in a single transistor.

2-D Electronics' metal or semiconductor? Both

Researchers produced the first 2-D field-effect transistor (FET) made of a single material.

New quantum phenomena in graphene superlattices

Researchers have just shown the first new type of quantum oscillation to be reported for thirty years. It is the first of its kind to be present at high temperature and on the mesoscale and sheds light on the Hofstadter butterfly phenomenon.

Physicists discover a tri-anion particle with colossal stability

Chemists have created the most stable tri-anion particle currently known to science. A tri-anion particle is a combination of atoms that contains three more electrons than protons. This discovery is novel because previously known tri-anion particles were unstable due to their numerical imbalance.

A new approach to ultrafast light pulses

A team of researchers has found a new way of producing high-speed pulses of light using two-dimensional molecular aggregates, which could enable new photonic devices such as optically based microchips.

An original method of cooling ions could have new and interesting uses

When investigating atoms, scientists face a challenge: At room temperature, individual atoms in a gas have kinetic energy, and fly around at large velocities. Temperature is, in essence, the relative movement between atoms; thus the goal of getting the atoms to have small relative velocities involves freezing them to extremely cold temperatures. A group has now developed new universal method for cooling ions.

New evidence for small, short-lived drops of early universe quark-gluon plasma?

Particles emerging from even the lowest energy collisions of small deuterons with large heavy nuclei at the Relativistic Heavy Ion Collider exhibit behavior scientists associate with the formation of a soup of quarks and gluons, the fundamental building blocks of nearly all visible matter.