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Nontrivial topologies are long believed to survive only in gapped systems, yet recent progress suggests their existence even at quantum critical points. By preparing low-lying states on a superconducting processor up to 100 qubits and applying entanglement Hamiltonian tomography, the authors experimentally observe these nontrivial topological properties and suggest low-lying states as useful quantum resources.

Despite recent progress, simulations of complex fluid dynamics phenomena on quantum computers remain challenging. Here, the authors present a quantum friendly reformulation of vortex dynamics with a spatiotemporal encoding scheme and apply it to simulations on a superconducting quantum processor.

Quantum low-density parity-check error correction codes are anticipated to deliver high performance, but require long-range qubit–qubit interactions. Two of these error correction codes have now been successfully implemented on a superconducting device.

Quantum error mitigation refers to techniques that reduce, rather than correct, errors in quantum computing. Here the authors demonstrate zero-noise extrapolation applied to quantum error correction circuits on superconducting processors, effectively reducing logical errors and advancing early fault-tolerant quantum computing.

Quantum speed limits are fundamental constraints on the speed of quantum state evolution. Here, the authors observe the known maximal quantum speed limits for few and many-body states on a superconducting quantum processor and identify the minimal quantum speed limits, which are less common than maximal ones.

Stable and robust topological edge modes are observed at finite temperatures in an array of 100 programmable superconducting qubits because of emergent symmetries present in the prethermal regime of this system.

Faithful transfer of quantum states between different parts of a single complex quantum circuit will become more and more important as quantum computing devices grow in size. Here, the authors transfer single-qubit excitations, two-qubit entangled states, and two excitations across a 6 × 6 superconducting qubit device.

The use of quantum simulators for studying non-equilibrium quantum transport has been limited. Here the authors demonstrate the steady quantum transport between many-body qubit baths on a superconducting quantum processor, revealing insights into pure-state statistical mechanics for nonequilibrium quantum systems.

Some many-body problems are challenging to solve in real space, but have a convenient Fock-space representation. A superconducting qubit experiment now demonstrates the benefits of this approach for the study of quantum dynamics and criticality.

Superconducting qubits have been used to realize a quantum many-body state that is capable of universal topological quantum computation.

The Greenberger-Horne-Zeilinger states are multipartite entangled quantum states with strong non-local entanglement. Here the authors generate large-scale states of this type with up to 60 qubits and show that discrete time crystals can effectively protect such fragile states.

Recently, there have been proposals to extend the concept of time crystals to topological order. Here the authors observe a prethermal topologically ordered time crystal on a superconducting quantum processor, where discrete time-translation symmetry breaking manifests for nonlocal rather than local observables.

Functional devices based on sliding ferroelectrics remain elusive. This work demonstrates the rewritable, non-volatile memory devices at room-temperature with two-dimensional sliding ferroelectric rhombohedral-stacked bilayer MoS₂. The device shows overall good performance and can be made flexible.

Fluid dynamics simulation, a complex challenge in classical physics, is relevant for real-world applications and highlights the potential of quantum computing. The authors report an experiment for the digital simulation of unsteady flows on a superconducting quantum processor, and show that the results effectively capture the evolution of flow fields.

The Somatic Mosaicism across Human Tissues Network aims to create a reference catalogue of somatic mosaicism across different tissues and cells within individuals.