Tag: Quantum computing
Whether with people, particles or the forces of physics, love always finds a way.
Paul Adrien Maurice Dirac was an outstanding twentieth century theoretical physicist whose work was fundamental to the development of quantum mechanics and quantum electrodynamics.
Enrico Fermi was a titan of twentieth-century physics.
Theoretical physicist Richard Phillips Feynman greatly simplified the way in which the interactions of particles could be described through his introduction of the diagrams that now bear his name (Feynman diagrams) and was a co-recipient of the Nobel Prize in Physics in 1965 for his reworking of quantum electrodynamics (QED).
In a career that lasted seven decades, Max Planck achieved an enduring legacy with groundbreaking discoveries involving the relationship between heat and energy, but he is most remembered as the founder of the "quantum theory."
In the 14 years since its discovery, graphene has amazed scientists around the world with both the ground-breaking physics and technological potential it displays. Recently, scientists from Penn State University added to graphene's gallery of impressive scientific achievements and constructed a map that will aid future exploration of this material. This work is emblematic of the large number of university-based materials research efforts that use the MagLab to explore the frontiers of science.
Research on doped SrCu2(BO3)2 shows anomalies in the magnetization.
Nuclear magnetic resonance measurements were performed in the all-new 32 T superconducting magnet in an effort to confirm a new quantum state. Results confirm the game-changing nature of this magnet.
A pane of window glass and a piece of quartz are both are transparent to light, but their atomic structure is very different. Quartz is crystalline at the atomic level while window glass is amorphous. This can also occur with magnetism at the atomic level in solids containing magnetic states such as antiferromagnetism (ordered) and spin-glass (disorded). This work describes the interaction (exchange bias) between ordered and disordered magnetic states and how the magnetic properties of the material are altered as a result.
Gallium nitride (GaN) and Niobium nitride (NbN) are widely used in today's technologies: GaN is used to make blue LEDs and high-frequency transistors while NbN is used to make infrared light detectors. This experiment explores whether a nitride-based device may be relevant for quantum technologies of the future.
Electron spin resonance work shows how transition metal can retain quantum information, important work on the path to next-generation quantum technologies.
This work reports the first observation of the dynamical generation of a spin polarized current from an antiferromagnetic material into an adjacent non-magnetic material and its subsequent conversion into electrical signals
High-resolution electron magnetic resonance studies of the spin-wave spectrum in the high-field phase of the multiferroic Bismuth ferrite (BiFeO3) reveal direct evidence for the magnetoelastic coupling through a change in lattice symmetry from rhombohedral to monoclinic. This study provides important information for designing future spintronics devices based on BiFeO3.
Using far-infared magnetospectroscopy in high magnetic fields, scientists probed coupled electronic and vibrational modes in a molecular magnet that are of interest in future classical and quantum information applications.
Electron spin coherence was enhanced through engineering of so-called clock transitions in molecular magnets, an advance in quantum computing strategies. The use of clock transitions to enhance quantum coherence is employed in trapped-ion quantum computers, an approach that may also be viable in magnetic molecules to yield next-generation quantum technologies.
Analogous to the unique spectral fingerprint of any atom or molecule, researchers have measured the spectrum of optical excitations in monolayer tungsten diselenide (WSe2), which is a member of a new family of ultrathin semiconductors that are just one atomic layer thick.
Scientists used high magnetic fields and low temperatures to study crystals of URu2–xFexSi2. Using these conditions, they explored an intriguing state of matter called the "hidden order phase" that exhibits emergent behavior. Emergent behavior occurs when the whole is greater than the sum of its parts, meaning the whole has exciting properties that its parts do not possess; it is an important concept in philosophy, the brain and theories of life. This data provide strict constraints on theories of emergent behavior.
Interactions between electrons underpin some of the most interesting – and useful -- effects in materials science and condensed-matter physics. This work demonstrates that, in the new family of so-called "monolayer semiconductors" that are only one atomic layer thick, electron-electron interactions can lead to the sudden and spontaneous formation of a magnetized state, analogous to the appearance of magnetism in conventional materials like iron.
A new class of correlated quasiparticle states discovered in a multi-valley semiconductor using optical absorption measurements in pulsed magnetic fields. This new type of multi-particle state results when excitons interact simultaneously with multiple electron reservoirs that are quantum-mechanically distinguishable by virtue of having different spin and/or valley quantum numbers.
Physicists prove a 30-year-old theory — the even-denominator fractional quantum Hall state — and establish bilayer graphene as a promising platform that could lead to quantum computation.
Ultrafast manipulation of material properties with light could stimulate the development of novel electronics, including quantum computers.
In a uranium-based compound once dismissed as boring, scientists watched superconductivity arise, perish, then return to life under the influence of high magnetic fields.
Columbia researchers first to discover a quantum fluid—fractional quantum Hall states, one of the most delicate phases of matter—in a monolayer 2D semiconductor; finding could provide a unique test platform for future applications in quantum computing.
A new experimental technique allowed physicists to precisely probe the electron spins of an intriguing compound and uncover unexpected behavior.
Tallahassee Company MagCorp to Partner with National MagLab.
New research has potential applications in quantum computing and introduces a new way to measure the secrets of superconductivity.
Work connecting physics, chemistry and materials science illustrates new methods to yield materials with quantum properties.
A material that you may never have heard of could be paving the way for a new electronic revolution.
This MagLab user talks about meeting Leonardo da Vinci, making magnetic soup and the freedom of being a scientist.
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