A team has created an artificial quantum magnet featuring a quasiparticle made of entangled electrons, the triplon.
Triplons are tricky little things. Experimentally, they're exceedingly difficult to observe. And even then, researchers usually conduct the tests on macroscopic materials, in which measurements are expressed as an average across the whole sample.
'These materials are very complex. They give you very exciting physics, but the most exotic ones are also challenging to find and study. So, we are trying a different approach here by building an artificial material using individual components,' says Professor Peter Liljeroth, head of the Atomic Scale physics research group at Aalto University.
In the case of two electrons, there are two entangled states known as singlet and triplet states. Supplying energy to the electron system can excite it from the singlet to the triplet state. In some cases, this excitation can propagate through a material in an entanglement wave known as a triplon. These excitations are not present in conventional magnetic materials, and measuring them has remained an open challenge in quantum materials.
The team monitored magnetic excitations first in individual cobalt-phthalocyanine molecules and later in larger structures like molecular chains and islands. By starting with the very simple and working towards increasing complexity, the researchers hope to understand emergent behaviour in quantum materials.
Norge Siste Nytt, Norge Overskrifter
Similar News:Du kan også lese nyheter som ligner på denne som vi har samlet inn fra andre nyhetskilder.
Research group detects a quantum entanglement wave for the first time using real-space measurementsTriplons are tricky little things. Experimentally, they're exceedingly difficult to observe. And even then, researchers usually conduct the tests on macroscopic materials, in which measurements are expressed as an average across the whole sample.
Les mer »
$70 Million in Research Training Opportunities for Students & Faculty from Historically Underrepresented InstitutionsDOE Announces $70 Million in Research Training Opportunities for Students and Faculty from Historically Underrepresented Institutions
Les mer »
New research shows link between climate change and immune healthClimate change may be impacting our immune systems, a study from the University of Bergen, Norway, shows. This research brings into focus the intricate interplay between environmental factors, microbial communities and their potential impact on human health.
Les mer »
Malibu Triathlon Benefitting Pediatric Cancer Research Sets Fall ReturnTom Cruise, Matthew McConaughey, Jennifer Lopez, Zac Efron and Jennifer Garner are among the stars who have previously taken part in the triathlon, which supports Children’s Hospital Los Angeles.
Les mer »
Bird Flu Research News -- ScienceDailyBird Flu News. Learn about current research on avian influenza including bird flu spread, vaccines, treatment, flu pandemic risks and more.
Les mer »
Viewpoint: Without more research and guardrails, geoengineering is a costly gamble, with potentially harmful resultsWhen soaring temperatures, extreme weather and catastrophic wildfires hit the headlines, people start asking for quick fixes to climate change. The U.S. government just announced the first awards from a US$3.5 billion fund for projects that promise to pull carbon dioxide out of the air. Policymakers are also exploring more invasive types of geoengineering − the deliberate, large-scale manipulation of Earth's natural systems.
Les mer »