Unscrambling the physics of out-of-time-order correlators

B Swingle - Nature Physics, 2018 - nature.com
Unscrambling the physics of out-of-time-order correlators | Nature Physics Skip to main content
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Dynamics of quantum information

RJ Lewis-Swan, A Safavi-Naini, AM Kaufman… - Nature Reviews …, 2019 - nature.com
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 …

Information scrambling in quantum circuits

X Mi, P Roushan, C Quintana, S Mandra, J Marshall… - Science, 2021 - science.org
Interactions in quantum systems can spread initially localized quantum information into the
exponentially many degrees of freedom of the entire system. Understanding this process …

Avoiding barren plateaus using classical shadows

SH Sack, RA Medina, AA Michailidis, R Kueng… - PRX Quantum, 2022 - APS
Variational quantum algorithms are promising algorithms for achieving quantum advantage
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

S Choi, Y Bao, XL Qi, E Altman - Physical Review Letters, 2020 - APS
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 …

Quantum information scrambling on a superconducting qutrit processor

MS Blok, VV Ramasesh, T Schuster, K O'Brien… - Physical Review X, 2021 - APS
The dynamics of quantum information in strongly interacting systems, known as quantum
information scrambling, has recently become a common thread in our understanding of …

Operator spreading in random unitary circuits

A Nahum, S Vijay, J Haah - Physical Review X, 2018 - APS
Random quantum circuits yield minimally structured models for chaotic quantum dynamics,
which are able to capture, for example, universal properties of entanglement growth. We …

Measurement-induced phase transitions in the dynamics of entanglement

B Skinner, J Ruhman, A Nahum - Physical Review X, 2019 - APS
We define dynamical universality classes for many-body systems whose unitary evolution is
punctuated by projective measurements. In cases where such measurements occur …

Characterizing quantum supremacy in near-term devices

S Boixo, SV Isakov, VN Smelyanskiy, R Babbush… - Nature Physics, 2018 - nature.com
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 …

Remarks on the sachdev-ye-kitaev model

J Maldacena, D Stanford - Physical Review D, 2016 - APS
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 …