Room temperature superconductivity shown in graphite
Researchers in Switzerland have observed room temperature superconductivity in graphite for the first time, opening up opportunities in quantum computing.
The Discovery of Room Temperature Superconductivity
Researchers in Switzerland have made a groundbreaking discovery by observing room temperature superconductivity in graphite for the first time. This discovery, published in Advanced Quantum Technologies, marks the first-ever observation of superconductivity at room temperature (300K) and normal pressure using bulk pyrolytic graphite. The team was led by Prof. Valerii Vinokur, Chief Technology Officer at Terra Quantum, with contributions from Professor Yakov Kopelevich and researchers from other institutions.
According to Prof. Vinokur, this experimental discovery has been long-awaited since the first observation of superconductivity in mercury a hundred years ago. The research team used scotch tape to cleave graphite into thin sheets, which were then covered in dense arrays of wrinkles. The geometry of these wrinkles leads to the formation of structures that enable superconducting currents to flow along them.
Implications for Quantum Computing and Other Industries
The discovery of room temperature superconductivity in graphite opens up new possibilities in various industries. Markus Pflitsch, the founder and CEO of Terra Quantum, believes that this breakthrough will lead to transformative advancements in superconducting technology. He envisions power grids with minimal energy loss, enhanced MRI technologies for healthcare, energy-efficient high-speed trains, and a new era of miniaturized and power-efficient electronics.
Additionally, Prof. Vinokur highlights the significant impact this discovery could have on quantum computing. Currently, the qubits used in quantum computers operate at extremely low temperatures, but room temperature superconductivity could allow for qubits that function without the need for extreme cooling. This could greatly accelerate advancements in quantum computing.
The Mechanism Behind Room Temperature Superconductivity
The researchers explain that the one-dimensional defects in graphite play a crucial role in enabling room temperature superconductivity. These defects create quantum phase slips that typically cause dissipation, but their interaction with the surface and bulk of graphite suppresses their motion. As a result, these defects turn superconducting.
The research was supported by Terra Quantum, a Swiss startup that offers Quantum as a Service (QaaS) in the areas of algorithms, quantum computing, and quantum security. With their patented approach to room temperature superconductivity, Terra Quantum aims to revolutionize various industries and advance the field of quantum computing.
