Physicists Capture Images of Ultracold Atoms Flowing Freely, Without Friction, in an Exotic “Edge State.”

Physicists Capture Images of Ultracold Atoms Flowing Freely, Without Friction, in an Exotic “Edge State.”

September 7, 2024
Now MIT physicists have directly observed edge states in a cloud of ultracold atoms. For the first time, the team has captured images of atoms flowing along a boundary without resistance, even as obstacles are placed in their path. The results, which appear today in Nature Physics, could help physicists manipulate electrons to flow without friction in materials that could enable super-efficient, lossless transmission of energy and data.

Quantum Error Correction Research Reveals Fundamental Insights on Quantum Systems

Quantum Error Correction Research Reveals Fundamental Insights on Quantum Systems

September 4, 2024
the Perimeter Institute for Theoretical Physics (Perimeter) is proud to celebrate our researchers whose published work in Nature Physics on September 3, 2024 documents their discovery of a new way to separate nontrivial quantum error correction codes from trivial ones. The research shows that this new boundary line isn’t arbitrary, and therefore represents fundamental progress on how quantum systems work in the real world. It paves the way for future applications not just in quantum computing – but also in condensed matter (with regards to topological order) and quantum gravity (with regards to conformal field theories).

HKUST and SJTU Physics Researchers Identify New Multiple Majorana Zero Modes in Superconducting SnTe

HKUST and SJTU Physics Researchers Identify New Multiple Majorana Zero Modes in Superconducting SnTe

August 31, 2024
A collaborative research team led by Prof. Junwei Liu, Associate Professor in the Department of Physics at the Hong Kong University of Science and Technology (HKUST), and Prof Jinfeng Jia and Prof Yaoyi Li from Shanghai Jiao Tong University (SJTU), has identified the world’s first multiple Majorana zero modes (MZMs) in a single vortex of the superconducting topological crystalline insulator SnTe and exploited crystal symmetry to control the coupling between the MZMs.

Superconductivity Is Unpredictable at the Edge

Superconductivity Is Unpredictable at the Edge

August 25, 2024
This study shows that the superconducting edge currents in the topological material molybdenum telluride (MoTe2) can sustain big changes in the “glue” that keeps the superconducting electrons paired. This is important because electrons pairing up is what makes electricity flow freely in a superconductor.

Researchers Observe “Locked” Electron Pairs in a Superconductor Cuprate

Researchers Observe “Locked” Electron Pairs in a Superconductor Cuprate

August 16, 2024
Now, researchers have observed that a necessary characteristic of a superconductor – called electron pairing – occurs at much higher temperatures than previously thought, and in a material where one least expects it – an antiferromagnetic insulator. Although the material did not have zero resistance, this finding suggests researchers might be able to find ways to engineer similar materials into superconductors that operate at higher temperatures.

LMU Researchers Has Developed a Scheme to Implement Doped Bosonic Quantum Magnets in Tweezer Arrays of Rydberg Atom

LMU Researchers Has Developed a Scheme to Implement Doped Bosonic Quantum Magnets in Tweezer Arrays of Rydberg Atom

August 6, 2024
In a recent paper published in Physical Review Letters, researchers of the Munich Center for Quantum Science and Technology (MCQST) - in collaboration with researchers from Regensburg, Heidelberg and Harvard University - propose a new scheme to emulate doped, bosonic quantum magnets in state-of-the-art cold atom and molecule experiments. Instead of relying on physical tunneling of the mobile dopants, they develop a protocol that utilizes the rich internal structure of atoms and molecules to implement the charge and spin degrees-of-freedom.

Scientists Discover Energy and Pressure Analogies Linking Hadrons, Superconductors and Cosmic Expansion

Scientists Discover Energy and Pressure Analogies Linking Hadrons, Superconductors and Cosmic Expansion

July 23, 2024
Recent research has shown that the trace anomaly can be measured using the production of charmonium. This is a type of subatomic particle produced at the Thomas Jefferson National Laboratory and the future Electron Ion Collider. Researchers can also theoretically calculate the trace anomaly using QCD. The study is published in the journal Physics Letters B.

New Method Developed to Control Quantum Bound States in Superconducting Device

New Method Developed to Control Quantum Bound States in Superconducting Device

July 5, 2024
Professors Gil-Ho Lee and Gil Young Cho from the Department of Physics at Pohang University of Science and Technology (POSTECH) in South Korea in collaboration with Dr. Kenji Watanabe and Dr. Takashi Taniguchi from National Institute for Materials Science (NIMS) in Japan have successfully controlled the quantum mechanical properties of Andreev bound states in bilayer graphene-based Josephson junctions using gate voltage. Their research has been published in “Physical Review Letters,” the international journal in the field of physics.

Scientists Have Developed a New Method for Fabricating Superconductors, Utilizing Photonic Crystal Cavities to Design the Superconductors

Recently, researchers at UChicago Pritzker Molecular Engineering, supported by a $1.5 million grant from the Gordon and Betty Moore Foundation, have discovered an entirely new method of fabricating superconductors. In this study, the team did not employ traditional chemical methods but instead utilized photonic crystal cavities to create superconductors. This approach sensitively controls superconductivity by changing the physical environment rather than the chemical environment, thus enabling the design of superconductors without changing their chemical composition.

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Researchers at QuTech Find a Way to Make Majorana Particles in a Two-Dimensional Plane

Researchers at QuTech have found a way to make Majorana particles in a two-dimensional plane. This was achieved by creating devices that exploit the combined material properties of superconductors and semiconductors. The inherent flexibility of this new 2D platform should allow one to perform experiments with Majoranas that were previously inaccessible. The results are published in Nature.

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