Explore quantum research, from error correction to new algorithms, with clear explanations of the evidence and the limits of each result.
Publication date where available; source report or sources-checked date otherwise.
A 2026 experiment revisits a gravity-inspired model of information transfer. The surprise is real; a tunnel through space is not.
A quantum annealer explored how an apparently stable state falls apart. Its “bubbles” stayed inside an engineered model, not our universe.
Researchers held one branch of an atomic wave still while another fell. Reuniting them revealed a distinctive gravitational phase.
A 62-kilometer fiber link near Washington carried entanglement through a messy real-world environment. Reliability, not distance, is the story.
A new Chalmers method targets a slow step in controlling protected quantum information, not every calculation a quantum computer performs.
An experiment with vibrating aluminum membranes shows how mechanical motion can join the quantum-information toolkit.
Google’s qubits settled into an unusual repeating rhythm, giving researchers a new way to explore how matter behaves.
A simulated chip layout uses barriers and shuffled error-correction codes to keep one radiation hit from becoming a whole-chip problem.
The state can arrive without a travelling original. But the receiver still needs a message, the sender loses the state, and the connection gets used up.
Repeated results can look inconsistent even on a perfect quantum device. The useful answer often lives in the pattern that emerges across many runs.
H2 beat the optimal classical score in an efficiently checked experiment, but this was a device test—not a useful computational speedup.
A preprint using Google Willow records separates predicting error rates from choosing error-correction software.
A conference benchmark reports lower EPR-pair use than QuComm, but only in simulation and under a matched communication protocol.
Physical qubits are the hardware. Logical qubits are error-protected systems built from them—and the conversion is never a universal ratio.
A simulated trapped-ion architecture kept decoding delay below 12% across three compiled workloads, but no fault-tolerant quantum computer ran the experiment.
A superconducting design divides storage and interaction between two coupled modes, with faster gates predicted in simulations.
Princeton-led MARQUIS will bring materials science and semiconductor processing to the Josephson junction, a core superconducting-qubit component.
A Nature experiment reports an approximately 500-nanosecond entangling gate that largely preserves detectable photon-loss errors.
The reported experiment embeds error checks in a sampling circuit and uses postselection to improve measured output quality.
A Nature study combines a 4-kelvin controller, ribbon-cable interconnect and millikelvin silicon quantum-dot processor.
A reinforcement-learning experiment improves stability under injected drift and fine-tunes an already calibrated processor.
A 54-qubit experiment creates a topologically ordered state and uses its anyonic excitations to demonstrate a universal gate toolkit.
Quantinuum’s trapped-ion machine shows why counting qubits is only the start of comparing quantum computers.
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A little perspective on a fast-moving field.
