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Research into quantum mechanics, quantum information, and the quantum behaviour of matter and light.
CHANNEL // 05 [75]
Research into quantum mechanics, quantum information, and the quantum behaviour of matter and light.
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A theoretical preprint identifies sharp decoding limits for decoded quantum interferometry on random sparse problems. Its case against exponential speedups with local decoders still depends on an unproved prediction about classical sampling.
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A preprint presents a hybrid method that uses quantum measurements to suggest electronic configurations for classical calculations. Simulations and a trapped-ion demonstration improve energy estimates for a hydrogen chain at a fixed final calculation size, without establishing a computational speed advantage.
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A theoretical preprint predicts that selecting particular outcomes of a quantum clock’s motion can produce an advanced clock signal, even though every individual motion component obeys ordinary time dilation. The effect depends on quantum interference and remains experimentally unverified.
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