Podcasts about quantum states

Under the Microscope - Episode with Carlos Anton Solanas Under the Microscope - Episode with Carlos Anton Solanas Ace Your LinkedIn, Register - https://aceyourlinkedin.my.canva.site/ In this episode of "Under the Microscope," we explore quantum communication with Carlos Anton Solanas from the Autonomous University of Madrid. Discover how Carlos and his team are using hot single photons and hexagonal boron nitride to revolutionize this field.

Welcome to season 2 finale of fAQ! For this season, Tai-Danae and Adam focused on a single topic: What is actually happening inside a quantum computer? By the end of this season, you'll have a better understanding of the "how" of quantum computing. So get ready to go beyond the theory and dig into what's actually going on these machines that harness the fundamental forces of the universe! In this sixth episode, we continue our exploration into DiVincenzo's fifth criterion for functional quantum computers: "Measurement of individual qubits". Specifically, we dig into what it means to "measure" something, in both the everyday context and in the quantum world. You might end up being surprised how similar those are and how not-strange measurement is in the quantum context...well at least some parts of those measurements! Oh, and we talk about how you, yes YOU, can work towards winning a Nobel Prize using the fAQ comment section ;-) Want to get in touch? Write us at faq-podcast@sandboxaq.com Host Bios: Tai-Danae Bradley is a research mathematician at SandboxAQ. She earned a PhD in mathematics from the CUNY Graduate Center and is creator of the mathematics blog, Math3ma, and a former cohost of PBS Infinite Series. Adam Green is the Head of Science Education at SandboxAQ. He earned a PhD in ecology and evolutionary biology from the University of Rochester and was the Director of US Academic Content at Khan Academy before joining Sandbox. Resources mentioned on this episode: https://pennylane.ai/qml/demos/tutorial_trapped_ions https://pennylane.ai/qml/demos/tutorial_sc_qubits https://www.scientificamerican.com/article/how-does-the-quantum-world-cross-over/ Want to learn more about what SandboxAQ does? Check out our blog: https://www.sandboxaq.com/blog

Antoine GeorgesPhysique de la matière condenséeAnnée 2022-2023Réseaux de neurones, apprentissage et physique quantiqueSéminaire : Juan Carrasquilla - Quantum States with Neural Networks: Representations and TomographyIntervenant(s) :Juan Carrasquilla, Vector Institute, Toronto

Antoine GeorgesPhysique de la matière condenséeAnnée 2022-2023Réseaux de neurones, apprentissage et physique quantiqueSéminaire - Giuseppe Carleoi - Time-Dependent Neural Quantum StatesGiuseppe Carleo, EPFL, Lausanne

Antoine GeorgesPhysique de la matière condenséeAnnée 2022-2023Réseaux de neurones, apprentissage et physique quantique02 - Réseaux de neurones, apprentissage et physique quantique : Représentation des états quantiques par réseaux de neurones (Neural Quantum States).

Antoine GeorgesPhysique de la matière condenséeAnnée 2022-2023Réseaux de neurones, apprentissage et physique quantiqueSéminaire - Filippo Vicentini - Neural Quantum States for Finite Temperature and Open Systems, with a Practical Introduction to NetKetFilippo Vicentini, École polytechnique, Paris et EPFL, Lausanne

William Kretschmer is a PhD student at the University of Texas Austin, advised by Scott Aaronson. He's one of these pseudo-celebrity-grad-students with lots of cool splashy results and we're stoked that he took the time to talk to us today. The talk primarily covered the basics of quantum cryptography, much of which should be familiar to regular group members who attended our quantum cafe series with Billy, but also concluded with some groovy quantum crypto history (see: quantum cash) and a discussion of exciting recent results by William & co. This is one of a series of cryptography related talks we're hosting this semester, and William started that series out with a bang! We hope you enjoy!

Reboot your Subtle Energy Software. Dalai Lama, Dr. Don Wiener, Alice Wyatt, The Innernaut! In this premiere episode, we explore the parallels between Buddhism and quantum mechanics from the documentary film The Dalai Lama: Scientist and discuss further with Dr. Don Weiner on the Quantum States.

In this episode, Jayne talks to Dr. Karl Moore Ph.D. Karl is a Physicist, Homeopath, and Author of "Natures Twist". Natures Twist is an exploration of the world based on spin and in particular the vortex. It is a little-known fact that everything spins from the Quantum States to Galaxies. And that spirals are Ubiquitous (everywhere)...our heart pumps blood out in a spiral motion, and through our arteries. Our DNA is spiral. Spirals are found everywhere in nature, from shells, fiddleheads, flowers, to tornadoes, which leads to a discussion on how the nature of this is within us and could be what explains our connection to consciousness, the Universe, and beyond. Karl also goes into a deep discussion into the explanation of homeopathy, the memory of water, and the nature of reality itself. Prepare to spiral up! #jaynemarquis #spiral #homeopathy #naturestwist #karlmoore #NaturesTwist #empwerment For more INpowering episodes - https://linktr.ee/INpoweredhealth https://www.amazon.ca/Natures-Twist-Water-Spirals-Life/dp/191607569X This podcast is for information purposes only and represents the views and opinions of the speakers. The information presented is not meant to diagnose, treat, cure, or prevent disease. We recommend you seek the advice of a licensed healthcare practitioner before beginning any natural, complimentary, or conventional treatment.

Pianist Henrik Kilhamn takes apart Scriabin's ambiguous harmonies in his sparkling Etude in F# major Op. 42 no. 4. The chords seem to exist in two states simultaneously, with some notes acting as bridges inbetween. The Etude is written in 1903, and we are now entering Scriabin's middle period where he is really starting to look outside of traditional harmony.

Our editors chat about quantum Darwinism, how to make and study atoms of antimatter and more

Learn about a quantum theory that says time can flow backward; why the Internet relies on huge undersea cables; and why people eat pufferfish, even though they’re incredibly poisonous. Please support our sponsors! Small business owners: visit https://www.ondeck.com/curiosity to receive a free consultation with a US-based loan specialist. Apply online or by phone and get approved in minutes. In this podcast, Cody Gough and Ashley Hamer discuss the following stories from Curiosity.com to help you get smarter and learn something new in just a few minutes: This Quantum Theory Says Time Can Flow Backward — https://curiosity.im/2DOW2VZ The Internet Relies on Huge Undersea Cables — And They're Vulnerable — https://curiosity.im/2Di9FvG Pufferfish Are Incredibly Poisonous, So Why Do People Eat Them? — https://curiosity.im/2DPWQKv If you love our show and you're interested in hearing full-length interviews, then please consider supporting us on Patreon. You'll get exclusive episodes and access to our archives as soon as you become a Patron! https://www.patreon.com/curiositydotcom Download the FREE 5-star Curiosity app for Android and iOS at https://curiosity.im/podcast-app. And Amazon smart speaker users: you can listen to our podcast as part of your Amazon Alexa Flash Briefing — just click “enable” here: https://curiosity.im/podcast-flash-briefing.

Quantum: States of Sound

This talk reviews the modern formulation of the basic ideas of quantum mechanics. We start by explaining what quantum amplitudes are, how they lead to the idea of a quantum state and how these states evolve in time. We then discuss what happens when a measurement is made before describing correlated ('entangled') systems. Applying these ideas to two-state systems ('qubits') we point out that the complexity of computing the evolution of an N qubit system grows like exp(N)

This talk reviews how to deal with quantum systems that are coupled to the outside world, as in reality all systems are. We first introduce density operators and explain how quantum states give rise to them. We then turn to measures of entanglement that can be computed from a density operator, and show that entanglement grows with time. Finally, we show how the interaction with the environment gives rise to the phenomenon of decoherence.

Dr. Ron Shefi, retired chiropractor and author of Ultimate Healing: Medicine Made Simple, returns in the conclusion of their conversation on Heart Rhythm, an indicator of a “quantum state” condition that affects an individual’s physical health. Ultimate Healing is one of the few sources of information about Heart Rhythm, its importance to physical health, even though it does not represent … Read more about this episode...

Cadney , J (University of Bristol) Wednesday 30 October 2013, 14:00-15:00

Solovej, JP (University of Copenhagen) Monday 14 October 2013, 11:30-12:30

Aeppli, G (University College London) Monday 16 September 2013, 16:15-17:00

Ramgoolam, S (Queen Mary, University of London) Wednesday 16 May 2012, 11:30-12:30

On classical Lie groups, which act by means of a unitary representation on finite dimensional Hilbert spaces H, we identify two classes of tensor field constructions. First, as pull-back tensor fields of order two from modified Hermitian tensor fields, constructed on Hilbert spaces by means of the property of having the vertical distributions of the C_0-principal bundle H_0 over the projective Hilbert space P(H) in the kernel. And second, directly constructed on the Lie group, as left-invariant representation-dependent operator-valued tensor fields (LIROVTs) of arbitrary order being evaluated on a quantum state. Within the NP-hard problem of deciding whether a given state in a n-level bi-partite quantum system is entangled or separable (Gurvits, 2003), we show that both tensor field constructions admit a geometric approach to this problem, which evades the traditional ambiguity on defining metrical structures on the convex set of mixed states. In particular by considering manifolds associated to orbits passing through a selected state when acted upon by the local unitary group U(n)xU(n) of Schmidt coefficient decomposition inducing transformations, we find the following results: In the case of pure states we show that Schmidt-equivalence classes which are Lagrangian submanifolds define maximal entangled states. This implies a stronger statement as the one proposed by Bengtsson (2007). Moreover, Riemannian pull-back tensor fields split on orbits of separable states and provide a quantitative characterization of entanglement which recover the entanglement measure proposed by Schlienz and Mahler (1995). In the case of mixed states we highlight a relation between LIROVTs of order two and a class of computable separability criteria based on the Bloch-representation (de Vicente, 2007).

First lecture of the Quantum Mechanics course given in Michaelmas Term 2009.

First lecture of the Quantum Mechanics course given in Michaelmas Term 2009.

In the first part of this thesis,we examine the preparation of a single- mode radiation field in arbitrary pure quantum states via resonant inter- action with a sequence of two-level atoms.The preparation is achieved by choosing an appropriate (in general entangled)initial state of the atomic sequence,and does neither require a final state measurement of the atoms,nor a control of the atom-field interaction.Furthermore,the method is applicable also when starting from mixed initial field states. We show how to determine the optimal initial atomic state which pre- pares the desired field state with the maximum fidelity,and prove the feasibility of our state preparation method by numerical calculations. In the second part,we demonstrate the noise-induced control of quantum jumps in a fundamental open quantum system.Here,in addition to the subsequent interaction with a flux of two-level atoms,the quantized field is also coupled to a thermal environment.Under certain experimental conditions,the photon field exhibits a bistable behavior,with quantum jumps between two metastable states.In the presence of a small peri- odic signal (i.e.,a modulation of the initial state of the two-level atoms crossing the single-mode resonator),the best synchronization of these quantum jumps with the signal is achieved at an optimal,nonvanishing temperature of the environment.This stochastic resonance e ffect can be observed in di fferent components of the atomic Bloch vector on exit from the cavity. The third part treats a speci fic problem concerning the characterization of entanglement between two quantum mechanical two-level systems. We consider the optimal decomposition of a two-qubit state into an en- tangled and a separable part,with maximal weight of the latter,and derive necessary and su fficient conditions for the optimality of the de- composition.

Dispersed emission from single rovibronic quantum states in S1 benzene is measured after Doppler-free two-photon excitation under low pressure conditions (0.3 Torr). This was made possible by a long-term stabilization of the single-mode dye laser yielding a stability of better than 1 MHz/h. The emission spectra of unperturbed rotational levels in the 141 and the 14111 vibronic states reveal a great number of detailed results on Duschinsky rotation and long-range Fermi resonances in the electronic ground state. By contrast, it is seen that the emission spectra from perturbed rovibronic states are contaminated by additional bands. The analysis of these bands leads in most cases to an identification of the coupled dark background state and the responsible rotation–vibration coupling process (H42 resonances). The emission spectra clearly demonstrate that even for a density of states of 60 1/cm−1, coupling in S1 benzene is still selective and far from the statistical limit. It is further demonstrated that the dark and the light states are more efficiently mixed by short-range couplings with coupling matrix elements of some GHz than by long-range Fermi resonances. The Journal of Chemical Physics is copyrighted by The American Institute of Physics.