Category archives: Quantum physics

Bending Ohm’s Law: How symmetry-broken crystals rewrite the rules of electronics

Bending Ohm’s Law: How symmetry-broken crystals rewrite the rules of electronics

Condensed matterMaterialsQuantum physics

By Invited Researcher

When Georg Ohm wired up pieces of copper in 1827, he struck a rule so robust that it still underpins every phone and supercomputer on Earth: double the current, double the voltage. Simple, linear, universal—or so we thought. Over the past decade physicists have discovered that this bedrock principle crumbles the moment a crystal loses […]

Vacuum fluctuations in optical cavities reveal hidden properties of embedded materials

Vacuum fluctuations in optical cavities reveal hidden properties of embedded materials

Quantum physics

By Mapping Ignorance

Researchers at the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) have theoretically demonstrated that photons trapped inside an optical cavity carry detailed information about a material placed within it. By measuring the properties of the photons leaking out of the cavity, researchers can probe how an optical cavity modifies the properties […]

The cryogenic quantum twisting microscope and the phason mode of moiré systems

The cryogenic quantum twisting microscope and the phason mode of moiré systems

DIPC Advanced materialsMaterialsQuantum physics

By DIPC

In the realm of modern physics, few materials have captured the imagination quite like graphene, a single layer of carbon atoms arranged in a honeycomb lattice. Its remarkable properties, such as exceptional electrical conductivity and strength, have made it a cornerstone of research into quantum materials. A recent study published in Nature takes this fascination […]

Towards a fully functional topological quantum computer

Towards a fully functional topological quantum computer

Computer scienceQuantum physics

By Mapping Ignorance

In a leap forward for quantum computing, a Microsoft team led by UC Santa Barbara physicists on Wednesday unveiled an eight-qubit topological quantum processor, the first of its kind. The chip, built as a proof-of-concept for the scientists’ design, opens the door to the development of the long-awaited topological quantum computer. “We’ve got a bunch […]

The equivalence of entropic uncertainty with wave-particle duality

The equivalence of entropic uncertainty with wave-particle duality

Quantum physics

By Mapping Ignorance

Researchers have confirmed a theory that proposes a connection between the complementarity principle and entropic uncertainty. “Our results have no clear or direct application right now. It’s basic research that lays the foundation for future technologies in quantum information and quantum computers. There’s enormous potential for completely new discoveries in many different research fields,” says […]

All-optical nonlinear Compton scattering using a ultrahigh intensity laser pulse

All-optical nonlinear Compton scattering using a ultrahigh intensity laser pulse

AstrophysicsPhysicsQuantum physics

By Mapping Ignorance

A team of researchers has successfully demonstrated nonlinear Compton scattering (NCS) between an ultra-relativistic electron beam and an ultrahigh intensity laser pulse using the 4-Petawatt laser at the Center for Relativistic Laser Science (CoReLS) within the Institute for Basic Science at Gwangju Institute of Science and Technology (GIST), Korea. The innovation is the use of […]

Quantum simulations of lattice gauge theories

Quantum simulations of lattice gauge theories

Condensed matterDIPC Quantum SystemsQuantum physics

By DIPC

A gauge theory is any number of quantum field theories put forward to explain fundamental interactions. In these theories the interactions between particles can be explained by the exchange of particles such as gluons, photons, and W and Z bosons. A gauge theory involves a symmetry group for the fields and potentials (the gauge group) […]

Inducing an antiferromagnetic exchange coupling at a hybrid metal–organic interface

Inducing an antiferromagnetic exchange coupling at a hybrid metal–organic interface

Condensed matterDIPC InterfacesMaterialsNanotechnologyQuantum physics

By DIPC

Molecular spintronics is an emerging field that combines ferromagnetic materials with organic or metal–organic semiconductors. It benefits from the unique and exceptional properties of organic molecules, which go beyond inorganic ones. The strong response of many organic molecules to electrical, optical, ferromagnetic or antiferromagnetic stimuli bring new potential functionalities to the spintronic device. An effective […]

A Topological Phonon Database has been built

A Topological Phonon Database has been built

Condensed matterDIPC Advanced materialsQuantum physics

By DIPC

The discovery of materials with topologically nontrivial electronic bands has led to high-throughput computational efforts that uncovered such bands in most known inorganic crystalline materials. Thus, in 2017, a team of researchers presented what they called Topological Quantum Chemistry (TQC), a new and complete understanding of the structure of bands in a material that links […]