Nature Physics, Published online: 15 August 2025; doi:10.1038/s41567-025-02990-x
The efficiency of a quantum computer depends on which basic operations it can implement. Now a scheme that can implement any two-qubit logic gate has been demonstrated on a superconducting architecture.
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- Efficient implementation of arbitrary two-qubit gates using unified control
- Entanglement and the density matrix renormalization group in the generalized Landau paradigmNature Physics, Published online: 15 August 2025; doi:10.1038/s41567-025-02961-2 Quantum spin chains can be represented in several ways, and eigenstates in these dual models have different entanglement structures. By characterizing the dual theories, the optimal tensor network algorithm for simulating the models has been found.
- A mechanical quantum memory for microwave photonsNature Physics, Published online: 13 August 2025; doi:10.1038/s41567-025-02975-w Superconducting qubits, a leading platform for quantum information processing, suffer from decoherence. Interfacing them with nanomechanical oscillators allows quantum information to be stored in motional states with longer lifetimes.
- Universality in quantum critical flow of charge and heat in ultraclean grapheneNature Physics, Published online: 13 August 2025; doi:10.1038/s41567-025-02972-z Critical behaviour is expected in graphene when the carrier density is tuned to the Dirac point. Now, universality associated with the critical point is observed in electronic and thermal transport.
- Quantized limit of conductivity in near-ideal grapheneNature Physics, Published online: 13 August 2025; doi:10.1038/s41567-025-02974-x Transport properties near the Dirac point in graphene are expected to be determined by quantum many-body interactions between relativistic electrons. Experiments now show that the flow of charge and heat in high-quality graphene close to charge neutrality can be described within a hydrodynamic framework, with universal intrinsic electrical conductivity that is quantized to a value close to the quantum of conductance.
- How to twist anyonsNature Physics, Published online: 13 August 2025; doi:10.1038/s41567-025-03009-1 The properties of quantum Hall states can be probed in experiments inspired by optical interferometers. Now, a device design that overcomes major drawbacks of existing interferometers allows the extraction of the quasiparticle statistics.
- Liquid dipole latticeNature Physics, Published online: 12 August 2025; doi:10.1038/s41567-025-02992-9 Geometrically confined apolar nematic liquid crystals lose rotational symmetry and form a multifunctional polar lattice of fluid elastic dipoles with controllable orientation. The lattice is of interest from a fundamental science perspective as well as having potential applications.
- Optomechanical control of long-lived bulk acoustic phonons in the quantum regimeNature Physics, Published online: 11 August 2025; doi:10.1038/s41567-025-02989-4 A massive phonon mode in a high-overtone bulk acoustic wave resonator has been laser cooled close to its ground state. Its robustness to decoherence establishes the potential of these devices for quantum technologies.
