The randomized measurement toolbox
Programmable quantum simulators and quantum computers are opening unprecedented
opportunities for exploring and exploiting the properties of highly entangled complex …
opportunities for exploring and exploiting the properties of highly entangled complex …
Many-body localization in the age of classical computing
Statistical mechanics provides a framework for describing the physics of large, complex
many-body systems using only a few macroscopic parameters to determine the state of the …
many-body systems using only a few macroscopic parameters to determine the state of the …
Observing the quantum Mpemba effect in quantum simulations
The nonequilibrium physics of many-body quantum systems harbors various unconventional
phenomena. In this Letter, we experimentally investigate one of the most puzzling of these …
phenomena. In this Letter, we experimentally investigate one of the most puzzling of these …
Quantum many-body simulations on digital quantum computers: State-of-the-art and future challenges
B Fauseweh - Nature Communications, 2024 - nature.com
Simulating quantum many-body systems is a key application for emerging quantum
processors. While analog quantum simulation has already demonstrated quantum …
processors. While analog quantum simulation has already demonstrated quantum …
Entanglement barrier and its symmetry resolution: Theory and experimental observation
The operator entanglement (OE) is a key quantifier of the complexity of a reduced density
matrix. In out-of-equilibrium situations, eg, after a quantum quench of a product state, it is …
matrix. In out-of-equilibrium situations, eg, after a quantum quench of a product state, it is …
Quantum computation of dynamical quantum phase transitions and entanglement tomography in a lattice gauge theory
Strongly coupled gauge theories far from equilibrium may exhibit unique features that could
illuminate the physics of the early universe and of hadron and ion colliders. Studying real …
illuminate the physics of the early universe and of hadron and ion colliders. Studying real …
Optimizing shadow tomography with generalized measurements
HC Nguyen, JL Bönsel, J Steinberg, O Gühne - Physical Review Letters, 2022 - APS
Advances in quantum technology require scalable techniques to efficiently extract
information from a quantum system. Traditional tomography is limited to a handful of qubits …
information from a quantum system. Traditional tomography is limited to a handful of qubits …
Many-body quantum chaos and emergence of Ginibre ensemble
We show that non-Hermitian Ginibre random matrix behaviors emerge in spatially extended
many-body quantum chaotic systems in the space direction, just as Hermitian random matrix …
many-body quantum chaotic systems in the space direction, just as Hermitian random matrix …
Many-body quantum chaos in stroboscopically-driven cold atoms
In quantum chaotic systems, the spectral form factor (SFF), defined as the Fourier transform
of two-level spectral correlation function, is known to follow random matrix theory (RMT) …
of two-level spectral correlation function, is known to follow random matrix theory (RMT) …
Quantifying quantum chaos through microcanonical distributions of entanglement
A characteristic feature of “quantum chaotic” systems is that their eigenspectra and
eigenstates display universal statistical properties described by random matrix theory (RMT) …
eigenstates display universal statistical properties described by random matrix theory (RMT) …