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Quantum Computing News and Quantum News. Technology News from around the planet. Exciting Latest Developments in Quantum Tech.
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News
Quantum Simulator Finds A 'pseudogap' In A Model Material
1+ day, 9+ hour ago (270+ words) This peak doesn’t simply indicate a change in density; it signals “an inflection point in the equation of state,” effectively delineating a boundary between underdoped and overdoped metallic regimes at large interactions. Further investigation utilizing lattice modulation spectroscopy provided complementary…...
Researchers Optimise Penning Traps For Single-Electron Qubits
1+ day, 12+ hour ago (877+ words) Millimetre-scale Penning traps previously relied upon approximations becoming inaccurate as device dimensions shrink. Now, an analytical solution offers precise design choices for optimising planar Penning trap geometry and voltage settings at sub-millimetre scales. This advancement minimises unwanted distortions in confining…...
Kagome Superconductors’ Quantum Magnetic Moments Revealed With Tin Impurities
1+ day, 10+ hour ago (1212+ words) Ivy Delaney has been working with neural networks and machine learning since the mid-nineties, back when a couple of hidden layers and a long afternoon of training counted as ambitious. She has watched the field go from academic curiosity to…...
Researchers Measure Quantum Processor Speed Using New Benchmark
1+ day, 8+ hour ago (961+ words) A sustained execution rate of over one million circuit layer operations per second now defines a new standard for assessing quantum computer performance. Until recently, benchmarking focused on fidelity alone, overlooking how quickly these machines could actually run complex calculations…...
Researchers Bound Quantum Infidelity During Simulation Periods
1+ day, 5+ hour ago (806+ words) Tape-recorder coarse graining delivers accurate results for Lorentzian and flat-band reservoirs where existing hierarchical equations of motion calculations fail to converge. This new technique dynamically manages computational demands during quantum nanostructure simulation without sacrificing fidelity, yielding Coulomb blockade peak splitting…...
Quantum Computers Cut Nonlocal Gates For Distributed Computing
2+ day, 15+ hour ago (723+ words) Dr. Donovan is a futurist and technology writer covering the quantum revolution. Where classical computers manipulate bits that are either on or off, quantum machines exploit superposition and entanglement to process information in ways that classical physics cannot. Dr. Donovan…...
Researchers Characterise Rules Building Quantum Error Correction
2+ day, 15+ hour ago (902+ words) Dr. Donovan is a futurist and technology writer covering the quantum revolution. Where classical computers manipulate bits that are either on or off, quantum machines exploit superposition and entanglement to process information in ways that classical physics cannot. Dr. Donovan…...
Researchers Create Attosecond Pulses Without Mode-Locking
2+ day, 5+ hour ago (773+ words) Attosecond pulse trains conventionally demand precisely aligned harmonic emissions, a process akin to orchestral tuning before performance. However, newly described ‘attoquants’ bypass this need entirely through intermodal entanglement, generating pulses without phase-locking between harmonics. These quantum states arise from collective…...
Researchers Map Hydrogen Defects Limiting Diamond Qubit Coherence
2+ day, 11+ hour ago (858+ words) Until now, understanding how irradiation impacts diamond’s potential as a quantum sensor demanded separate analysis of processing *and* initial growth stages. Detailed DEER spectroscopy reveals an ‘X ensemble’ of defects initially comprising vacancies and interstitials disappearing by 650°C, before vacancy…...
Researchers Achieve 7.44e-9 Fidelity For 200-Qubit States
2+ day, 13+ hour ago (672+ words) Dr. Donovan is a futurist and technology writer covering the quantum revolution. Where classical computers manipulate bits that are either on or off, quantum machines exploit superposition and entanglement to process information in ways that classical physics cannot. Dr. Donovan…...