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“#Scaling up the quantum chip” Credit: CC0 Public Domain MIT researchers have developed a process to manufacture and integrate “artificial atoms,” created by atomic-scale defects in microscopically thin slices of diamond, with photonic circuitry, producing the largest quantum chip of its type. The accomplishment “marks a turning point” in the field of scalable quantum processors,…
“#Scientists introduce new method for machine learning classifications in quantum computing” A quantum circuit for implementing the non-linear kernel-based binary classification. Credit: KAIST Quantum information scientists have introduced a new method for machine-learning classifications in quantum computing. The non-linear quantum kernels in a quantum binary classifier provide new insights for improving the accuracy of quantum…
“#Examining trapped ion technology for next generation quantum computers” IonQ’s trapped ion system. Credit: Duke University, staq.pratt.duke.edu/ Quantum computers (QC) are poised to drive important advances in several domains, including medicine, material science and internet security. While current QC systems are small, several industry and academic efforts are underway to build large systems with many…
“#Team obtained high-level control of spin qubit lifetime based on silicon quantum dots” Credit: CC0 Public Domain By tuning the direction of the external magnetic field with respect to the crystallographic axis of the silicon wafer, an improvement of spin lifetime (relaxation time) by over two orders of magnitude was reported in silicon quantum dots….
“#Researchers realize an anomalous Floquet topological system” Credit: CC0 Public Domain An international team led by physicists from the Ludwig-Maximilians Universitaet (LMU) in Munich realized a novel genuine time-dependent topological system with ultracold atoms in periodically-driven optical honeycomb lattices. Topological phases of matter have attracted a lot of interest due to their unique electronic properties…
“#Wiring a new path to scalable quantum computing” This schematic image of integrated superconducting qubits and their packaging,shows the qubits as green dots with rings, which are laid out on top of a silicon chip (in red). A number of holes through the chip electrically connect the top and bottom surfaces. The blue wires on…
“#A three-dimensional phase diagram of heavy-fermion compound with coexisting quantum phases” Credit: Knafo et al. URu2Si2 is a metal that belongs to the family of heavy-fermion compounds in which several quantum phases (e.g., magnetism and superconductivity) can compete or coexist. These metals exhibit small energy scales that are easy to tune, a characteristic that makes…
“#Tabletop quantum experiment could detect gravitational waves” Credit: Pixabay/CC0 Public Domain Predicted by Einstein’s general theory of relativity, gravitational waves are ripples in space-time generated by certain movements of massive objects. They are important to study because they allow us to detect events in the universe that would otherwise leave little or no observable light,…
“#Quantum fluctuations can jiggle objects on the human scale” Credit: CC0 Public Domain The universe, as seen through the lens of quantum mechanics, is a noisy, crackling space where particles blink constantly in and out of existence, creating a background of quantum noise whose effects are normally far too subtle to detect in everyday objects….
“#A new material for light-matter interactions” Credit: Pixabay/CC0 Public Domain Ecole Polytechnique Federale de Lausanne scientists have coupled a new material with light at the level of a single photon. The achievement opens up prospects for better controlling and understanding the properties of quantum-correlated systems, where theoretical calculations are difficult. There is a large group…