Used as a versatile material in industry and health care, magnesium oxide may also be a good candidate for quantum technologies. Research led by the U.S. Department of Energy’s (DOE) Argonne National Laboratory and published […]
Deep beneath the Swiss-French border, the Large Hadron Collider unleashes staggering amounts of energy and radiation—enough to fry most electronics. Enter a team of Columbia engineers, who built ultra-rugged, radiation-resistant chips that now play a […]
Quantum 9, 1816 (2025). https://doi.org/10.22331/q-2025-07-29-1816 We introduce “dual-unitary shadow tomography” (DUST), a classical shadow tomography protocol based on dual-unitary brick-wall circuits. To quantify the performance of DUST, we study operator spreading and Pauli weight dynamics […]
Quantum 9, 1815 (2025). https://doi.org/10.22331/q-2025-07-29-1815 In the paradigmatic example of quantum measurements, whenever one measures a system which starts in a superposition of two states of a conserved quantity, it jumps to one of the […]
Quantum 9, 1814 (2025). https://doi.org/10.22331/q-2025-07-29-1814 We consider finite-dimensional many-body quantum systems described by time-independent Hamiltonians and Markovian master equations, and present a systematic method for constructing smaller-dimensional, reduced models that $exactly$ reproduce the time evolution […]
Quantum field theory (QFT) is a physics framework that describes how particles and forces behave based on principles rooted in quantum mechanics and Albert Einstein’s special relativity theory. This framework predicts the emergence of various […]
Quantum 9, 1813 (2025). https://doi.org/10.22331/q-2025-07-29-1813 Arunachalam and de Wolf (2018) [1] showed that the sample complexity of quantum batch learning of boolean functions, in the realizable and agnostic settings, has the $textit{same form and order}$ […]
Horizon Quantum, a developer of quantum software development tools, has joined the QuEra Quantum Alliance. This alliance aims to foster collaboration and widespread adoption of neutral-atom quantum computing. Through this partnership, Horizon Quantum expects to […]
As the demand for more secure data transmission increases, conventional communication technologies are facing limitations imposed by classical physics, and are therefore approaching their limits in terms of security. Fortunately, quantum communication may help us […]
Usually, light waves can pass through each other without any resistance. According to the laws of electrodynamics, two light beams can exist in the same place without influencing each other; they simply overlap. Light saber […]
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