Cooling nanotube resonators with electrons
Researchers report on a technique that uses electron transport to cool a nanomechanical resonator near the quantum regime.
Read moreQuantum Computers
Next-generation single-photon source for quantum information science
Researchers have built what they believe is 'the world's most efficient single-photon source.' And they are still improving it. With planned upgrades, the apparatus could generate upwards of 30 photons at unprecedented efficiencies. Sources of that caliber are precisely what's needed for optical quantum information applications.
Read moreKeeping cool with quantum wells
A research team has invented a semiconductor quantum well system that can efficiently cool electronic devices using established fabrication methods. This work can allow for smaller and faster smart devices that consume less power.
Read moreTunable optical chip paves way for new quantum devices
Researchers have created a silicon carbide (SiC) photonic integrated chip that can be thermally tuned by applying an electric signal. The approach could one day be used to create a large range of reconfigurable devices such as phase-shifters and tunable optical couplers needed for networking applications and quantum information processing.
Read moreUltra-fast optical way to extract critical information from quantum materials
Topological insulators are quantum materials, which, due to their exotic electronic structure, on surfaces and edges conduct electric current like metal, while acting as an insulator in bulk. Scientists have now demonstrated how to tell apart topological materials from their regular — trivial — counterparts within a millionth of a billionth of a second by probing it with ultra-fast laser light.
Read more2000 atoms in two places at once
The quantum superposition principle has been tested on a scale as never before in a new study. Hot, complex molecules composed of nearly two thousand atoms were brought into a quantum superposition and made to interfere. By confirming this phenomenon — 'the heart of quantum mechanics', in Richard Feynman's words — on a new mass scale, improved constraints on alternative theories to quantum mechanics have been placed.
Read moreA metronome for quantum particles
Physicists have found a way to measure the elusive quantum phase of electrons. This enables a new, better view of important phenomena used in photosensors or photovoltaics.
Read moreQuantum material goes where none have gone before
Physicists have created a quantum material that can travel through a previously unexplored region marked by strange electronic properties. The journey is by an alloy of cerium palladium and aluminum.
Read moreCreating different kinds of light with manipulable quantum properties
Researchers describe a noteworthy step forward in the quantum manipulation and control of light.
Read moreQuantum internet closer to reality
New research result brings the quantum internet a step closer. Such an internet could offer the military security, sensing and timekeeping capabilities not possible with traditional networking approaches.
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