Quantum systems are inevitably open, continually exchanging energy and information with the surrounding environment. This interaction leads to decoherence and decay of quantum states. In complex systems, formed by many particles, decay can become correlated and enhanced. A fundamental question then arises: what is th...
Wai-Keong Mok, A. Poddar, Erick Sierra et al.· Nature Physics· 0 citations
A fundamental question in physics is: When does classical behavior emerge from quantum systems? Bosonic Gaussian states provide a natural setting to explore this quantum-classical boundary, as they capture both the classical field behavior and the intrinsic quantum nature of light. Here, we address this problem from a...
Senrui Chen, A. A. Mele, Francesco Anna Mele et al.· 0 citations
Thermalization conventionally describes local properties of isolated many-body systems at equilibrium. Magic, or nonstabilizerness $\unicode{x2013}$ the resource enabling universal quantum computation $\unicode{x2013}$ is by contrast encoded in the global structure of the many-body wavefunction. We show that, despite i...
Soumyadeep Sarma, Tobias Haug, John Preskill et al.· 4 citations
Quantum metrology, which addresses parameter estimation in quantum systems, has broad applications across science and technology. Conventional metrology protocols for multi-qubit states in the multi-parameter regime typically require highly complex quantum measurements, leading to substantial quantum-resource costs. In...
Liang Mao, Senrui Chen, Hsin-Yuan Huang et al.· 0 citations
Mitten codes are introduced, a family of qLDPC processor codes of encoding rate of encoding rate of $20 and check weight of $9, based on non-abelian groups, allowing mitten codes to reach distance $18 and beyond with just a few hundred data qubits.
Aditya Bhardwaj, Mu-Zhou Ma, N. Meister et al.· 9 citations· ⚡2
This work proposes protocols that address both challenges on programmable analog and digital quantum simulation platforms, and provides a versatile approach to the quantum simulation of scattering phenomena, and is compatible with several quantum simulation platforms that are already experimentally available.
F. Surace, Sary Bseiso, John Preskill· 2 citations
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