Quantum information science

Quantum Fisher information

The quantum Fisher information is a central quantity in quantum metrology and is the quantum analogue of the classical Fisher information. The quantum Fisher information of a state with respect to the observable is defined as where and are the eigenvalues and eigenvectors of the density matrix respectively, and the summation goes over all and such that . When the observable generates a unitary transformation of the system with a parameter from initial state , the quantum Fisher information constrains the achievable precision in statistical estimation of the parameter via the quantum Cramér–Rao bound as where is the number of independent repetitions. It is often desirable to estimate the magnitude of an unknown parameter that controls the strength of a system's Hamiltonian with respect to a known observable during a known dynamical time . In this case, defining , so that , means estimates of can be directly translated into estimates of . (Wikipedia).

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What Is Quantum Computing | Quantum Computing Explained | Quantum Computer | #Shorts | Simplilearn

🔥Explore Our Free Courses With Completion Certificate by SkillUp: https://www.simplilearn.com/skillup-free-online-courses?utm_campaign=QuantumComputingShorts&utm_medium=ShortsDescription&utm_source=youtube Quantum computing is a branch of computing that focuses on developing computer tech

From playlist #Shorts | #Simplilearn

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Quantum Operators

Quantum Operators for measurements of Energy, Position, and Momentum in Quantum Physics. My Patreon page is at https://www.patreon.com/EugeneK

From playlist Physics

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Artificial General Intelligence | Tim Ferriss & Eric Schmidt | GEONOW

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From playlist ML & Deep Learning

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Quantum Computer in a Nutshell (Documentary)

The reservoir of possibilities offered by the fundamental laws of Nature, is the key point in the development of science and technology. Quantum computing is the next step on the road to broaden our perspective from which we currently look at the Universe. The movie shows the history of pr

From playlist Quantum computing

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Quantized Energy Equation (Quantum Physics)

#Quantum #Physics #Engineering #tiktok #NicholasGKK #shorts

From playlist Quantum Mechanics

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Quantum Physics Full Course | Quantum Mechanics Course

Quantum physics also known as Quantum mechanics is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles. It is the foundation of all #quantum #physics including quantum chemistry, quantum field theory

From playlist Quantum Mechanics

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Restoring Heisenberg scaling in noisy quantum metrology (...) - M. Genoni - Workshop 2 - CEB T2 2018

Marco Genoni (Univ. Milano) / 06.06.2018 Restoring Heisenberg scaling in noisy quantum metrology by monitoring the environment We study quantum frequency estimation for N qubits subjected to independent Markovian noise, via strategies based on time-continuous monitoring of the environmen

From playlist 2018 - T2 - Measurement and Control of Quantum Systems: Theory and Experiments

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Seize the Moments: Enhancing Moment Estimation (...) - M. Tsang - PRACQSYS 2018 - CEB T2 2018

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From playlist 2018 - T2 - Measurement and Control of Quantum Systems: Theory and Experiments

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The Grand Unified Theory of Quantum Metrology - R. Demkowicz-Dobrzanski - Workshop 1 - CEB T2 2018

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From playlist 2018 - T2 - Measurement and Control of Quantum Systems: Theory and Experiments

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Ever heard of Quantum Operators and Commutators? (Explained for Beginners)!

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From playlist Quantum Physics by Parth G

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Sloppiness and Parameter Identifiability, Information Geometry by Mark Transtrum

26 December 2016 to 07 January 2017 VENUE: Madhava Lecture Hall, ICTS Bangalore Information theory and computational complexity have emerged as central concepts in the study of biological and physical systems, in both the classical and quantum realm. The low-energy landscape of classical

From playlist US-India Advanced Studies Institute: Classical and Quantum Information

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Emergent topology in quenched quantum systems by Amit Dutta

DATES Monday 20 Jun, 2016 - Wednesday 29 Jun, 2016 VENUE Ramanujan Lecture Hall, ICTS Bangalore APPLY Understanding strongly interacting quantum many body systems is one of the major frontiers in present day physics. Condensed matter physics provides a wide panoply of systems where strong

From playlist School on Current Frontiers in Condensed Matter Research

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Why do simple models work? Partial answers from information geometry (Lecture 1) by Ben Machta

26 December 2016 to 07 January 2017 VENUE: Madhava Lecture Hall, ICTS Bangalore Information theory and computational complexity have emerged as central concepts in the study of biological and physical systems, in both the classical and quantum realm. The low-energy landscape of classical

From playlist US-India Advanced Studies Institute: Classical and Quantum Information

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What Is The Uncertainty Principle?

Subscribe to our YouTube Channel for all the latest from World Science U. Visit our Website: http://www.worldscienceu.com/ Like us on Facebook: https://www.facebook.com/worldscienceu Follow us on Twitter: https://twitter.com/worldscienceu

From playlist Science Unplugged: Quantum Mechanics

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The Map of Quantum Computing | Quantum Computers Explained

An excellent summary of the field of quantum computing. Find out more about Qiskit at https://qiskit.org and their YouTube channel https://www.youtube.com/c/qiskit And get the poster here: https://store.dftba.com/collections/domain-of-science/products/map-of-quantum-computing With this vi

From playlist Quantum Physics Videos - Domain of Science

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Concentration of quantum states from quantum functional (...) - N. Datta - Workshop 2 - CEB T3 2017

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From playlist 2017 - T3 - Analysis in Quantum Information Theory - CEB Trimester

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Theory of disorder-induced half-integer thermal Hall conductance by Mitali Banerjee

DISCUSSION MEETING : EDGE DYNAMICS IN TOPOLOGICAL PHASES ORGANIZERS : Subhro Bhattacharjee, Yuval Gefen, Ganpathy Murthy and Sumathi Rao DATE & TIME : 10 June 2019 to 14 June 2019 VENUE : Madhava Lecture Hall, ICTS Bangalore Topological phases of matter have been at the forefront of r

From playlist Edge dynamics in topological phases 2019

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Towards superresolution surface metrology: Quantum (...) - G. Adesso - Workshop 1 - CEB T2 2018

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From playlist 2018 - T2 - Measurement and Control of Quantum Systems: Theory and Experiments

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Identification and information geometry of quantum (...) - M. Guta - Workshop 2 - CEB T3 2017

Madalin Guta / 26.10.17 Identification and information geometry of quantum input-output systems This talk deals with the problem of identifying and estimating dynamical parameters of continuous-time quantum open systems, in the input-output formalism. I will discuss several aspects of th

From playlist 2017 - T3 - Analysis in Quantum Information Theory - CEB Trimester

Related pages

Complex conjugate | Quantum entanglement | Fidelity of quantum states | Kronecker product | Vectorization (mathematics) | Moore–Penrose inverse | Quantum information science | Quantum metrology | Conjugate transpose | Entanglement depth | Quantum Cramér–Rao bound | Bures metric | Infimum and supremum | Fisher information