All articles tagged with #anyons
Researchers show that in one dimension, particles can have exchange statistics between bosons and fermions (anyons) whose strength can be tuned by short-range interactions; momentum-distribution measurements in existing ultracold-atom setups could observe these 1D anyons, opening a path to new forms of quantum matter and tests of fundamental quantum statistics.
Theoretical work shows that confining anyons to a single dimension forces them into two exchange types—boson-like and fermion-like—with their statistics and a measurable momentum distribution serving as a fingerprint, signaling a potential new layer of particle behavior beyond the familiar boson/fermion dichotomy.
Physicists at the Okinawa Institute of Science and Technology and the University of Oklahoma report in two Physical Review A papers that a strictly one-dimensional system can host anyons with continuously tunable exchange statistics, extending the anyon concept from two dimensions to 1D and offering a mapable recipe for these statistics.
Researchers have discovered that by reintroducing a previously discarded type of particle called neglectons into topological quantum computing models, they can enable Ising anyons to perform universal quantum computation through braiding alone, potentially advancing the development of more robust quantum computers.
Researchers have observed the fractional quantum Hall effect in a thin semiconductor material without the need for a magnetic field. This phenomenon, which involves the splitting of electrons into new particles called anyons, has potential applications in quantum computing. The findings were reported in three papers in Nature and one in press at Physical Review X.
Researchers at the University of Washington have made a significant breakthrough in quantum computing by detecting fractional quantum anomalous Hall (FQAH) states in semiconductor material flakes. These FQAH states can host anyons, which are quasiparticles with only a fraction of an electron's charge. Anyons have the potential to create stable and fault-tolerant qubits, which are crucial for the development of quantum computers. The team's experiments involved stacking atomically thin flakes of molybdenum ditelluride (MoTe2) to create an artificial lattice with exotic properties. The detection of FQAH states marks a new paradigm for studying quantum physics and could lead to the discovery of non-Abelian anyons, which could be used as topological qubits.
Researchers at the University of Washington have made a significant advancement in developing fault-tolerant qubits for quantum computing by detecting signatures of "fractional quantum anomalous Hall" (FQAH) states in experiments with flakes of semiconductor materials. FQAH states can host anyons, which can be used to make "topologically protected" qubits that are stable against any small, local disturbances. The team built an artificial lattice with exotic properties using two atomically thin flakes of the semiconductor material molybdenum ditelluride (MoTe2) to host FQAH states. The team hopes to discover an even more exotic version of quasiparticles called "non-Abelian" anyons, which could be used as topological qubits.
An international team led by Markus Greiner at Harvard has realized a Laughlin state using ultracold neutral atoms manipulated by lasers. The experiment involves trapping a few atoms in an optical box and implementing the ingredients required for the creation of this exotic state: a strong synthetic magnetic field and strong repulsive interactions among the atoms. The researchers imaged the atoms one by one through a powerful quantum-gas microscope and demonstrated the peculiar "dance" of the particles, which orbit around each other, as well as the fractional nature of the realized atomic Laughlin state. This milestone opens the door to a wide new field of exploration of Laughlin states and their cousins in quantum simulators.