Quantum metrology with quantum-chaotic sensors
LJ Fiderer, D Braun - Nature communications, 2018 - nature.com
Quantum metrology promises high-precision measurements of classical parameters with far
reaching implications for science and technology. So far, research has concentrated almost …
reaching implications for science and technology. So far, research has concentrated almost …
Nonlinear dynamics and quantum chaos of a family of kicked -spin models
We introduce kicked p-spin models describing a family of transverse Ising-like models for an
ensemble of spin-1/2 particles with all-to-all p-body interaction terms occurring periodically …
ensemble of spin-1/2 particles with all-to-all p-body interaction terms occurring periodically …
Quantifying operator spreading and chaos in Krylov subspaces with quantum state reconstruction
We study operator spreading in many-body quantum systems by its potential to generate an
informationally complete measurement record in quantum tomography. We adopt …
informationally complete measurement record in quantum tomography. We adopt …
Suppression of chaos via control of energy flow
S Guo, J Ma, A Alsaedi - Pramana, 2018 - Springer
Continuous energy supply is critical and important to support oscillating behaviour;
otherwise, the oscillator will die. For nonlinear and chaotic circuits, enough energy supply is …
otherwise, the oscillator will die. For nonlinear and chaotic circuits, enough energy supply is …
Quantum tomography with random diagonal unitary maps and statistical bounds on information generation using random matrix theory
We study quantum tomography from a continuous measurement record obtained by
measuring expectation values of a set of Hermitian operators obtained from unitary evolution …
measuring expectation values of a set of Hermitian operators obtained from unitary evolution …
Generation of Bures-Hall mixed states using coupled kicked tops
We simulate a system of coupled kicked tops to generate random density matrices
distributed according to the Bures-Hall measure, which has an important role in quantum …
distributed according to the Bures-Hall measure, which has an important role in quantum …
Dynamic analysis and chaos control of a unified chaotic system
X Wu, X Qiu, L Hu - Pramana, 2024 - Springer
Two different control methods are proposed in this paper to effectively control the chaotic
phenomenon of nonlinear dynamical system. One is a new Hamilton energy feedback …
phenomenon of nonlinear dynamical system. One is a new Hamilton energy feedback …
A study of chaos and randomness in quantum systems
S PG - arXiv preprint arXiv:2402.00287, 2024 - arxiv.org
How classical chaos emerges from the underlying quantum world is a fundamental problem
in physics. The origin of this question is in the correspondence principle. Classical chaos …
in physics. The origin of this question is in the correspondence principle. Classical chaos …
Quantum Information Scrambling, Chaos, Sensitivity, and Emergent State Designs
ND Varikuti - arXiv preprint arXiv:2409.10182, 2024 - arxiv.org
Understanding quantum chaos is of profound theoretical interest and carries significant
implications for various applications, from condensed matter physics to quantum error …
implications for various applications, from condensed matter physics to quantum error …
Information Gain, Operator Spreading, and Sensitivity to Perturbations as Quantifiers of Chaos in Quantum Systems
A Sahu - arXiv preprint arXiv:2404.09464, 2024 - arxiv.org
We adopt a continuous weak measurement tomography protocol to explore the signatures of
chaos in the quantum system (s). We generate the measurement record as a series of …
chaos in the quantum system (s). We generate the measurement record as a series of …