7 papers
Universal equilibrium magic in quantum many-body systems
Soumyadeep Sarma, Tobias Haug, John Preskill +1
Thermalization conventionally describes local properties of isolated many-body systems at equilibrium. Magic, or nonstabilizerness $\unicode{x2013}$ the resource enabling universal…
Entanglement governs early-time growth of randomness in projected ensembles
Thuwaragesh Jayachandran, Wai-Keong Mok
Deep thermalization concerns the emergence of universal pure-state statistics in projected ensembles at late times, yet the mechanism governing the initial growth of randomness rem…
Nature is stingy: Universality of Scrooge ensembles in quantum many-body systems
Wai-Keong Mok, Tobias Haug, Wen Wei Ho +1
Recent advances in quantum simulators allow direct experimental access to ensembles of pure states generated by measuring part of an isolated quantum many-body system. These projec…
Rise and fall of nonstabilizerness via random measurements
Annarita Scocco, Wai-Keong Mok, Leandro Aolita +2
We investigate the dynamics of nonstabilizerness - also known as `magic' - in monitored quantum circuits composed of random Clifford unitaries and local projective measurements. Fo…
Optimal Conversion from Classical to Quantum Randomness via Quantum Chaos
Wai-Keong Mok, Tobias Haug, Adam L. Shaw +2
Quantum many-body systems provide a unique platform for exploring the rich interplay between chaos, randomness, and complexity. In a recently proposed paradigm known as deep therma…
Pseudorandom density matrices
Nikhil Bansal, Wai-Keong Mok, Kishor Bharti +2
Pseudorandom states (PRSs) are state ensembles that cannot be efficiently distinguished from Haar random states. However, the definition of PRSs has been limited to pure states and…