Unscrambling the physics of out-of-time-order correlators
B Swingle - Nature Physics, 2018 - nature.com
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Dynamics of quantum information
The ability to harness the dynamics of quantum information and entanglement is necessary
for the development of quantum technologies and the study of complex quantum systems …
for the development of quantum technologies and the study of complex quantum systems …
Information scrambling in quantum circuits
Interactions in quantum systems can spread initially localized quantum information into the
exponentially many degrees of freedom of the entire system. Understanding this process …
exponentially many degrees of freedom of the entire system. Understanding this process …
Avoiding barren plateaus using classical shadows
Variational quantum algorithms are promising algorithms for achieving quantum advantage
on near-term devices. The quantum hardware is used to implement a variational wave …
on near-term devices. The quantum hardware is used to implement a variational wave …
Quantum error correction in scrambling dynamics and measurement-induced phase transition
We analyze the dynamics of entanglement entropy in a generic quantum many-body open
system from the perspective of quantum information and error corrections. We introduce a …
system from the perspective of quantum information and error corrections. We introduce a …
Quantum information scrambling on a superconducting qutrit processor
The dynamics of quantum information in strongly interacting systems, known as quantum
information scrambling, has recently become a common thread in our understanding of …
information scrambling, has recently become a common thread in our understanding of …
Operator spreading in random unitary circuits
Random quantum circuits yield minimally structured models for chaotic quantum dynamics,
which are able to capture, for example, universal properties of entanglement growth. We …
which are able to capture, for example, universal properties of entanglement growth. We …
Measurement-induced phase transitions in the dynamics of entanglement
We define dynamical universality classes for many-body systems whose unitary evolution is
punctuated by projective measurements. In cases where such measurements occur …
punctuated by projective measurements. In cases where such measurements occur …
Characterizing quantum supremacy in near-term devices
A critical question for quantum computing in the near future is whether quantum devices
without error correction can perform a well-defined computational task beyond the …
without error correction can perform a well-defined computational task beyond the …
Remarks on the sachdev-ye-kitaev model
We study a quantum-mechanical model proposed by Sachdev, Ye and Kitaev. The model
consists of N Majorana fermions with random interactions of a few fermions at a time. It it …
consists of N Majorana fermions with random interactions of a few fermions at a time. It it …