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IBM to offer access to a dual-processor quantum system in 2027: The company plans on linking two 520-qubit chips before next year is over.
arstechnica.com/science/2026/11/ibm-to-offer-access-to-a-dual-processor-quantum-system-in-2027/
Paid articlePaywall IBM Unveils Next-Gen Quantum Chip. Useful Systems Are Years, Not Decades, Away.: Packing 520 qubits and chip-to-chip couplers, IBM’s latest quantum processor ...
barrons.com/articles/ibm-quantum-computing-chip-a1e52cfe

Optical experiment demonstrates the strong Mpemba effect in a single qubit: Typically, after a physical system is disturbed, it can gradually return toward a ...
phys.org/news/2026-11-optical-strong-mpemba-effect-qubit.html

Oak Ridge labs gets hybrid quantum-HPC system to test qubit error correction: Co-design platform for quantum error correction melds IBM quantum kit with AMD CPUs ...
theregister.com/hpc/2026/11/06/oak-ridge-labs-gets-hybrid-quantum-hpc-system-to-test-qubit-error-correction/5308187

Single molecules could provide the building blocks for future quantum networks: Quantum computers rely on qubits as their units of information ...
phys.org/news/2026-11-molecules-blocks-future-quantum-networks.html

Scientists identify the origin of noise in spin qubit quantum processors: A spin qubit, in which quantum information is encoded in the spin state of an electron ...
phys.org/news/2026-06-scientists-noise-qubit-quantum-processors.html

Quantum chips could scale faster with new spin-qubit readout that reduces sensors and wiring
phys.org/news/2026-04-quantum-chips-scale-faster-qubit.html

Majorana qubits become readable as quantum capacitance detects even-odd states: The race to build reliable quantum computers is fraught with obstacles ...
phys.org/news/2026-02-majorana-qubits-readable-quantum-capacitance.html

Metal–metal bonded molecule achieves stable spin qubit state, opening path toward quantum computing materials
phys.org/news/2026-01-metalmetal-bonded-molecule-stable-qubit.html
Key FactsCobalt Molecule with Metal Bonds Shows Stable Spin-Qubit States
Jan 6, 2026 · Reading time: ~45 sec.
Summary created with AI assistance · Source: phys.org
Summary created with AI assistance · Source: phys.org
- Co₃(dpa)₄Cl₂ consists of three linearly arranged cobalt ions and can change its spin state as a spin-crossover material.
- Magnetic measurements and pulsed EPR spectroscopy showed slow magnetic relaxation and sufficiently long spin lifetimes.
- The electron spin is delocalized across all three cobalt ions; clear Rabi oscillations also demonstrated coherent manipulation.
- The results experimentally showed for the first time that a metal-bonded molecule can function as a spin qubit, providing new design strategies.
This work opens a new pathway for designing molecular qubits.— Professor Shinya Hayami, Kumamoto University, who led the study.

NIST Physicists Bring Unruly Molecules to the Quantum Party: Molecules can serve as versatile building blocks for quantum technologies, but they are much harder ...
nist.gov/news-events/news/2025/12/nist-physicists-bring-unruly-molecules-quantum-party

Experimental proof shows quantum world is even stranger than previously thought: The quantum world is famously weird—a single particle can be in two places at ...
phys.org/news/2025-11-experimental-proof-quantum-world-stranger.html

China's supercomputer breakthrough uses 37 million processor cores to model complex quantum chemistry at molecular scale — Sunway fuses AI and quantum ...
tomshardware.com/tech-industry/supercomputers/china-supercomputer-breakthrough-models-complex-quantum-chemistry-at-molecular-scale-37-million-processor-cores-fuse-ai-and-quantum-science

Quantum networks bring new precision to dark matter searches: Detecting dark matter—the mysterious substance that holds galaxies together—is one of the greatest ...
phys.org/news/2025-10-quantum-networks-precision-dark.html

Rigorous approach quantifies and verifies almost all quantum states: Quantum information systems, systems that process, store or transmit information leveraging ...
phys.org/news/2025-10-rigorous-approach-quantifies-quantum-states.html

Molecular coating cleans up noisy quantum light: Quantum technologies demand perfection: one photon at a time, every time, all with the same energy ...
phys.org/news/2025-10-molecular-coating-noisy-quantum.html
Key FactsPTCDA Layer Stabilizes Single-Photon Sources
Oct 3, 2025 · Reading time: ~45 sec.
Summary created with AI assistance · Source: phys.org
Summary created with AI assistance · Source: phys.org
- Northwestern University engineers coated both sides of atomically thin tungsten diselenide with a molecular layer of PTCDA.
- It increased spectral purity by 87%, shifted photon color controllably, lowered activation energy, and preserved the semiconductor’s properties.
- Defects in the two-dimensional semiconductor emit single photons but remain vulnerable to contaminants in the atmosphere.
- The team plans to study other semiconductors and molecular coatings and drive emission electrically for quantum networks.
The big idea is that we want to go from individual quantum computers to quantum networks, and ultimately, a quantum internet. Quantum communication will occur using single photons. Our technology will help build single-photon sources that are stable, tunable and scalable—the essential components for making that vision a reality.— Mark C. Hersam, study's corresponding author at Northwestern University

Entangled states enhance energy transfer in models of molecular systems: A study from Rice University, published in PRX Quantum, has found that energy transfers ...
phys.org/news/2025-10-entangled-states-energy-molecular.html

First-principles simulations reveal quantum entanglement in molecular polariton dynamics
phys.org/news/2025-09-principles-simulations-reveal-quantum-entanglement.html

High-fidelity entangling gates connect remote superconducting quantum processors: Quantum computers hold the potential of solving some optimization and data ...
phys.org/news/2025-08-high-fidelity-entangling-gates-remote.html
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