Search results for fermionic model

General Physics Aug 19, 2019

Holography and criticality in matchgate tensor networks

Tensor networks take a central role in quantum physics as they can provide an efficient approximation to specific classes of quantum states. The associated graphical language can also easily describe and pictorially reason ...

Quantum Physics Aug 15, 2019

Quantum system virtually cooled to half of its actual temperature

Physicists have developed a quantum simulation method that can "virtually cool" an experimental quantum system to a fraction of its actual temperature. The method could potentially allow access to extremely low-temperature ...

General Physics Jul 22, 2019

ATLAS Experiment searches for rare Higgs boson decays into muon pairs

Could the Higgs boson still surprise us? Since its discovery in 2012, theĀ ATLAS and CMS collaborations at CERN have been actively studying the properties of this latest and most mysterious addition to the Standard Model of ...

General Physics Jul 18, 2019

Improving the signal-to-noise ratio in quantum chromodynamics simulations

Over the last few decades, the exponential increase in computer power and accompanying increase in the quality of algorithms has enabled theoretical and particle physicists to perform more complex and precise simulations ...

General Physics Jul 12, 2019

Weyl fermions discovered in another class of materials

A particular kind of elementary particle, the Weyl fermions, were first discovered a few years ago. Their specialty: they move through a material in a well ordered manner that practically never lets them collide with each ...

Quantum Physics Jun 26, 2019

Research reveals exotic quantum states in double-layer graphene

Researchers from Brown and Columbia Universities have demonstrated previously unknown states of matter that arise in double-layer stacks of graphene, a two-dimensional nanomaterial. These new states, known as the fractional ...

Quantum Physics Jun 17, 2019

Quantum simulation could help flights run on time

A powerful new form of computing could help scientists design new types of materials for nanoelectronics, allow airlines to solve complex logistical problems to ensure flights run on time, and tackle traffic jams to keep ...

General Physics May 27, 2019

Ultra-cold lithium atoms shed light on pair formation in superfluids, helping identify best theories

A FLEET/Swinburne study released this week resolves a long-standing debate about what happens at the microscopic level when matter transitions into a superconducting or superfluid state.

General Physics May 23, 2019

Artificial atomic scale materials: Discovering how electrons fatten

A single and isolated electron has a clear electrical charge, magnetic moment and mass, and its free movement can be precisely predicted. Spanish scientists fabricated a nanoscale artificial material manipulating atoms one ...

General Physics May 8, 2019

New material also reveals new quasiparticles

Researchers at PSI have investigated a novel crystalline material that exhibits electronic properties that have never been seen before. It is a crystal of aluminum and platinum atoms arranged in a special way. In the symmetrically ...

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