Harvard scientists have developed a groundbreaking photon router that creates an optical interface between light signals and superconducting microwave qubits, potentially solving a major quantum computing challenge by enabling different quantum systems to communicate efficiently without bulky wires, thus bringing distributed, fiber-optic-based quantum computers closer to reality.
Researchers successfully observed “dissipative phase transitions” in quantum systems using a superconducting Kerr resonator at near-absolute zero temperatures, revealing phenomena like “squeezing,” metastability, and “critical slowing down” that could revolutionize quantum computing and sensing technologies through enhanced stability and precision.
Recent experiments with superconductor-quantum dot hybrids demonstrate that contact-induced level broadening and hybridization effects in thermoelectric Cooper pair splitters lead to shifted resonances and parity reversal in thermoelectric current, revealing new avenues for harnessing nonlocal quantum correlations in solid-state systems through gate voltage control.
An international research team has developed a groundbreaking technique to integrate superconductors with semiconductors by patterning platinum on germanium and heating it to form a superconducting alloy, demonstrating coherent quantum states that could enable hybrid quantum processors combining the scalability of semiconductor qubits with the long-range connectivity of superconducting circuits.
ISTA physicists have developed a breakthrough method to connect superconducting qubits using fiber optics instead of traditional electrical signals, significantly reducing cooling requirements and potentially enabling the scaling and networking of quantum computers by converting optical signals to microwave frequencies that qubits can process.
Researchers at Google and PSI have developed a revolutionary quantum simulator that combines digital precision with analog modeling capabilities, enabling unprecedented studies of complex physical phenomena through a versatile 69-qubit system that can both precisely control initial conditions and naturally simulate physical interactions, opening new possibilities in fields ranging from materials science to astrophysics.
Researchers experimentally characterized tantalum airbridges as control line jumpers, ground plane crossovers and coupling elements, and further validated the overall adaptability by a 13-qubit quantum processor with a median T1 exceeding 100 μs.
Tokyo Metropolitan University researchers discovered that polycrystalline iron-nickel-zirconium alloys exhibit unconventional superconductivity through a dome-shaped phase diagram, representing a significant advance in developing practical high-temperature superconductors despite neither pure iron zirconide nor nickel zirconide showing such properties individually.
Researchers have used an innovative new strategy combining nuclear magnetic resonance imaging and a quantum modeling theory to describe the microscopic structure of Kagome superconductor RbV3Sb5 at 103 degrees Kelvin, which is equivalent to about 275 degrees below 0 degrees Fahrenheit.
Physicists have experimentally demonstrated for the first time that there is a negative correlation between the two spins of an entangled pair of electrons from a superconductor.
Magnets and superconductors don’t normally get along, but a new study shows that ‘magic-angle’ graphene is capable of producing both superconductivity and ferromagnetism, which could be useful in quantum computing.
Physicists at the University of Basel have developed a minuscule instrument able to detect extremely faint magnetic fields.
Physicists have discovered spontaneous static magnetic fields with broken time-reversal symmetry in a class of iron-based superconductors.
Scientists have succeeded in synthesizing thorium decahydride (ThH10), a new superconducting material with the very high critical temperature of 161 kelvins.
Researchers at Aalto University have yet reported ultrawide Josephson junctions (up to 80 μm wide) based on chemical-vapor-deposition graphene where the critical current was found to be uniformly distributed in the direction perpendicular to the current.