Bubble formation is a signal of false vacuum decay, in which a system transitions from a local energy minimum to a true vacuum. Now, simulations on a quantum annealer show how interactions between bubbles drive the long-time dynamics of this process.
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It has been proposed that the equilibration time of many-body systems is limited by a timescale determined by Planck’s constant and temperature. A bound of this kind has now been identified for a universal definition of equilibration time.
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Searches for metastable states with properties not found in thermal equilibrium have been restricted to either ultrafast or slow timescales. A metastable state in an intermediate time window has now been identified in a photo-doped Mott insulator
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Phase tuning of propagating spin waves is a crucial step in the development of devices based on magnons, which are the quanta of spin waves. Now, this has been demonstrated in a device comprising two spin Hall nano-oscillators.
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Measurements combined with post-processing of their outcomes can be used to prepare ordered quantum states. It has been shown that they can drive a Nishimori phase transition into a disordered state even in the presence of quantum errors.
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The phonon density of states in diamond is engineered using phononic crystals to suppress single-phonon processes that induce decoherence in individual quantum emitters.
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A unified description of the dynamics of structurally disordered materials is challenging. Simulations of model systems now show that percolation theory provides a framework unifying two prominent relaxation processes in supercooled liquids and glasses.
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Antarctic ice plays a crucial role in regulating Earth’s climate, global sea levels, ocean circulation, and planetary reflectivity
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Superconducting qubits are measured using microwaves, posing constraints on its size and thermal budgets. The electro-optic transceiver presented here can be used to perform optical readout without affecting qubit performance.
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Microwaves are usually used to interact with superconducting qubits, but optical photons can be processed at room temperature. The electro-optical transceiver presented here allows all-optical readout of a qubit without affecting its performance.
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