Quantum Fisher information matrix and multiparameter estimation

J Liu, H Yuan, XM Lu, X Wang - Journal of Physics A …, 2020 - iopscience.iop.org
Quantum Fisher information matrix (QFIM) is a core concept in theoretical quantum
metrology due to the significant importance of quantum Cramér–Rao bound in quantum …

On-demand directional microwave photon emission using waveguide quantum electrodynamics

B Kannan, A Almanakly, Y Sung, A Di Paolo… - Nature Physics, 2023 - nature.com
Routing quantum information between non-local computational nodes is a foundation for
extensible networks of quantum processors. Quantum information transfer between arbitrary …

Equivalence of quantum heat machines, and quantum-thermodynamic signatures

R Uzdin, A Levy, R Kosloff - Physical Review X, 2015 - APS
Quantum heat engines (QHE) are thermal machines where the working substance is a
quantum object. In the extreme case, the working medium can be a single particle or a few …

Digital quantum simulation of open quantum systems using quantum imaginary–time evolution

H Kamakari, SN Sun, M Motta, AJ Minnich - PRX Quantum, 2022 - APS
Quantum simulation on emerging quantum hardware is a topic of intense interest. While
many studies focus on computing ground-state properties or simulating unitary dynamics of …

Quantum stochastic processes and quantum non-Markovian phenomena

S Milz, K Modi - PRX Quantum, 2021 - APS
The field of classical stochastic processes forms a major branch of mathematics. Stochastic
processes are, of course, also very well studied in biology, chemistry, ecology, geology …

[图书][B] Geometry of quantum states: an introduction to quantum entanglement

I Bengtsson, K Życzkowski - 2017 - books.google.com
Quantum information theory is a branch of science at the frontier of physics, mathematics,
and information science, and offers a variety of solutions that are impossible using classical …

Quantum simulation of the Lindblad equation using a unitary decomposition of operators

AW Schlimgen, K Head-Marsden, LAM Sager… - Physical Review …, 2022 - APS
Accurate simulation of the time evolution of a quantum system under the influence of an
environment is critical to making accurate predictions in chemistry, condensed-matter …

Parametrically activated entangling gates using transmon qubits

SA Caldwell, N Didier, CA Ryan, EA Sete, A Hudson… - Physical Review …, 2018 - APS
We describe and implement a family of entangling gates activated by radio-frequency flux
modulation applied to a tunable transmon that is statically coupled to a neighboring …

Variational-state quantum metrology

B Koczor, S Endo, T Jones, Y Matsuzaki… - New Journal of …, 2020 - iopscience.iop.org
Quantum technologies exploit entanglement to enhance various tasks beyond their classical
limits including computation, communication and measurements. Quantum metrology aims …

Completely positive maps and classical correlations

CA Rodríguez-Rosario, K Modi, A Kuah… - Journal of Physics A …, 2008 - iopscience.iop.org
We expand the set of initial states of a system and its environment that are known to
guarantee completely positive reduced dynamics for the system when the combined state …