Tag

Quantum Interference

All articles tagged with #quantum interference

condensed-matter-physics2 months ago

Quantum Interference and Coherence in Kagome Crystals

The study presents evidence of a long-range, coherent many-body electronic state in the kagome metal CsV3Sb5, characterized by macroscopic interference effects in magnetoresistance measurements, which persist over micrometers and are sensitive to sample geometry and strain, suggesting a state with similarities to superconductivity but without dissipation.

technology1 year ago

"Harnessing Quantum Interference for Ultra-Efficient Transistors"

Researchers have developed a new single-molecule transistor that utilizes quantum interference to control electron flow, potentially leading to smaller, faster, and more energy-efficient transistors. By exploiting quantum effects, the transistor demonstrates a high on/off ratio and stability, with the ability to operate for hundreds of thousands of cycles. This breakthrough could pave the way for the development of new types of transistors that are more efficient and reliable, with potential applications in various electronic devices.

physics1 year ago

"Discovery of Electron-Immobile Crystal Baffles Physicists"

Physicists from Rice University have discovered a strange form of crystal, a pyrochlore, where electrons are unable to move freely in a three-dimensional lattice due to quantum interference effects. This phenomenon, previously observed in 2D materials, could lead to the development of new materials with unique electronic properties, potentially shedding light on phenomena such as superconductivity. The discovery provides a new tool for studying unconventional electron behavior and could lead to the identification of materials with similar properties.

physics2 years ago

"Discovery of Quantum Interference Multiphoton Effect in Light"

Researchers from Leibniz University Hannover and the University of Strathclyde have discovered a new multiphoton effect within the quantum interference of light, disproving previous assumptions about the impact of multiphoton components in interference effects of thermal fields and parametric single photons. The team's research, published in Physical Review Letters, reveals that the interference effect between thermal light and parametric single photons also leads to quantum interference with the background field, challenging previous calculation methods. This discovery could have implications for quantum key distribution and the interpretation of quantum interference effects for secure communications in the future.

physics2 years ago

Resolving Quantum Interference in Photoionization with Attosecond Precision

Researchers have developed a new method for conducting attosecond physics research by building on the RABBITT technique. By changing the polarization of laser pulses, they were able to measure individual contributions in photoionization and resolve quantum interference between different pathways. The experiments were conducted on helium, neon, and argon samples, and the results were validated through simulations. This method could provide insights into the fundamental dynamics of photoionization and potentially lead to advancements in controlling electrons using light for applications in electronic circuitry, photovoltaics, and radiation damage prevention in medical tools.

physics2 years ago

"Einstein Rings and Dark Matter Mysteries Explored by Astrophysicists"

A new study suggests that axions, a type of force-carrying particle, may be a better explanation for dark matter than WIMPs (weakly interacting massive particles). While WIMPs have been the leading candidate for dark matter, their properties do not fully explain certain details on the scale of individual galaxies. Axions, on the other hand, have properties that are consistent with dark matter and may explain features in gravitational lensing that are difficult to explain with WIMPs. Axions interact with each other through quantum interference, creating wave-like patterns in their frequency throughout a galaxy.