For the first time, nuclear physicists made precision measurements of the short-lived radioactive molecule, radium monofluoride (RaF). The researchers combined ion-trapping and specialized laser systems to measure the fine details of the quantum structure of RaF. This allowed them to study the rotational energy levels of RaF and determine its laser-cooling scheme.
Spectroscopy allows scientists to study the structure of atoms and molecules, including the energy levels of their electrons. This research examines the potential of spectroscopy techniques that rely on quantum entanglement of these photons. These methods can reveal information about molecules not possible with traditional spectroscopy. They also reduce the damage spectroscopy causes to samples.
For the past 15 years, niobium has been considered a mediocre material for qubits, which are the carriers of quantum information. But now a group at Stanford University and the University of Chicago has demonstrated a way to create niobium-based qubits that rival the state-of-the-art for their class. By restructuring and reengineering how niobium is incorporated in a component called the Josephson junction, the group developed a qubit that could maintain information for 62 millionths of a second, 150 times longer than its best-performing niobium predecessors.
A team of researchers including a member of the Quantum Science Center at ORNL has published a review paper on the state of the field of Majorana research. The paper primarily describes four major platforms that are capable of hosting these particles, as well as the progress made over the past decade in this area.
A Washington University engineer is developing a prototype of a quantum photonic-dimer laser with a two-year, $1 million grant from the Defense Advanced Research Projects Agency (DARPA) of the U.S. Department of Defense
A specialized piece of equipment at Oak Ridge National Laboratory is used for measurements varying from extremely large structures to quantum. The equipment is available for projects within and outside the national lab.
A team of scientists, with help from Argonne National Laboratory’s Advanced Photon Source, have demonstrated the existence of an elusive state of matter known as quantum spin nematic.
Conventional metals cannot conduct light in their interiors, but scientists have discovered that in the quantum metal ZrSiSe, electrons can give rise to plasmons.
The Quantum Systems Accelerator (QSA), recently launched the “You Belong in Quantum Series!” in collaboration with the four other U.S. Department of Energy National QIS Research Centers. The initiative’s January 2024 webinar featured distinguished leaders in the field.
To study quantum many-body systems, researchers use computational tools called quantum Monte Carlo simulations. In this work, researchers used a specific approach called the “floating block method” to compute atomic nuclei corresponding to two different Hamiltonians.
Entanglement entropy quantifies the amount of entanglement between two subsystems. In many systems, the entanglement entropies increase as the area that separates them from their environment increases.
Theorists and computational scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and Stony Brook University (SBU) ran a series of quantum simulations to explore one of the quirkiest features of the quantum realm: entanglement. The study takes quantum back to its roots in seeking to explain the behavior of subatomic particles.
Researchers have unveiled the extraordinary behavior of weakly-bound three-atomic molecules, defying conventional understanding of quantum mechanics.
On March 11, PPPL opened its new Quantum Diamond Lab, a space devoted to studying and refining the processes involved in using plasma, the electrically charged fourth state of matter, to create high-quality diamond material for quantum information science applications.
The next generation of programmable quantum devices will require processors built around superior qubits. Researchers developed a blueprint for a novel quantum information processor based on fluxonium qubits. These fluxonium qubits outperform transmons, the most widely used superconducting qubits. The researchers also made practical suggestions on how to adapt and build the cutting-edge hardware for superconducting devices.
In January, Sandia National Laboratories and The University of New Mexico created the Quantum New Mexico Institute, a cooperatively run research center headquartered at the university.
Scientists are a step closer to unravelling the mysterious forces of the universe after working out how to measure gravity on a microscopic level.
Niobium has long been considered an underperformer in superconducting qubits. Scientists supported by Q-NEXT, a US DOE quantum center led by Argonne, have now engineered a high-quality niobium-based qubit, taking advantage of niobium’s superior qualities.
Scientists are a step closer to unravelling the mysterious forces of the universe after working out how to measure gravity on a microscopic level.
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