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Comparing many-body localization lengths via non-perturbative construction of local integrals of motion
Pai Peng, Zeyang Li, Haoxiong Yan +2
Many-body localization (MBL), characterized by the absence of thermalization and the violation of conventional thermodynamics, has elicited much interest both as a fundamental phys…
Emergent prethermalization signatures in out-of-time ordered correlations
Ken Xuan Wei, Pai Peng, Oles Shtanko +4
How a many-body quantum system thermalizes --or fails to do so-- under its own interaction is a fundamental yet elusive concept. Here we demonstrate nuclear magnetic resonance obse…
Environment-assisted quantum-enhanced sensing with electronic spins in diamond
Alexandre Cooper, Won Kyu Calvin Sun, Jean-Christophe Jaskula +1
The performance of solid-state quantum sensors based on electronic spin defects is often limited by the presence of environmental spin impurities that cause decoherence. A promisin…
Ancilla-free quantum error correction codes for quantum metrology
David Layden, Sisi Zhou, Paola Cappellaro +1
Quantum error correction has recently emerged as a tool to enhance quantum sensing under Markovian noise. It works by correcting errors in a sensor while letting a signal imprint o…
Nonclassical correlations for quantum metrology in thermal equilibrium
Akira Sone, Quntao Zhuang, Changhao Li +2
Nonclassical correlations beyond entanglement might provide a resource in quantum information tasks, such as quantum computation or quantum metrology. Quantum discord is a measure…
Quantum Hamiltonian Identifiability via a Similarity Transformation Approach and Beyond
Yuanlong Wang, Daoyi Dong, Akira Sone +3
The identifiability of a system is concerned with whether the unknown parameters in the system can be uniquely determined with all the possible data generated by a certain experime…