QIC Journal🤩#newpublication #call4reading
✍️Selection and Improvement of #ProductFormulae for Best Performance of #QuantumSimulation #by Mauro E. S. Morales, et al.
🔗https://sciendo.com/article/10.2478/qic-2025-0001 (DOI: 10.2478/qic-2025-0001)
Trapped Ions - Stockholm Univ.Postdoc Position Available – Quantum simulations with trapped Rydberg ions
We are hiring! Our group at Stockholm University is looking for a Postdoctoral Fellow to join us in exploring open-system quantum simulations with Rydberg ions.
• 🌍 Funded by the ERC Synergy Grant Open-2QS
• 🔗 Learn more & apply: qtech.fysik.su.se
🚀 We’re hiring! Two PhD positions available at Stockholm University in quantum simulation with Rydberg ions.
🌍 Funded by the prestigious ERC Synergy Grant Open-2QS
🔗 More info & apply: https://qtech.fysik.su.se
Join us in pushing the frontiers of quantum research! ⚛️
QUINTO projectQuantum simulation of topological orders
In the previous posts, I was talking a lot about complex quantum states that we aim to study in the QUINTO project: topological orders, in particular spin liquids. Now, let us see how quantum optics can help us in this endeavour.
Topological orders can be hard to find. Not all of them – one particular class, “fractional quantum Hall states”, can be created in the lab by applying very strong magnetic field to electrons confined in two dimensions. But others, such as spin liquids, remain elusive, even though scientists proposed some materials in which spin liquids might occur.
Moreover, with solid-state materials, we don’t usually have enough control to manipulate individual anyons as precisely as we would want (even though impressive experiments were performed with tiny anyon colliders and anyon interferometers in the quantum Hall systems).
An alternative is to assemble a quantum system – a “quantum simulator” from scratch, piece by piece, precisely controlling its parameters. For example, it is possible to “catch” a single atom with a laser beam – a so-called “optical tweezer”. The radiation pressure of the beam “traps” the atom in the point where the light is strongest, i.e. where the beam is focused. Such atoms can then be arranged in arrays resembling crystals.
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#TopologicalOrder #Physics #Science #Quantum #QuantumSimulation #QuantumPhysics #QuantumOptics
Fraunhofer FOKUS💡 Qrisp 0.5 empowers researchers and developers to tackle complex quantum simulations and optimize algorithms with greater ease and efficiency. 🔎 Explore our new tutorials, including H2 molecule simulations and solving Sudoku with Quantum-Backtracking!
#QuantumComputing #Qrisp #SoftwareRelease #QuantumSimulation
MCQST🤩The latest episode of #exzellenterklaert is online!
🎧 Tune in now for an inside look at the latest in #quantumsimulation and the collaborative efforts driving innovation in MCQST.
Quantensimulation: Schlüssel zu Hochtemperatur-Supraleitern?
Das Verhalten einzelner Atome und Moleküle kann man in der Quantenphysik sehr gut vorhersagen. Schwieriger wird das, wenn sich viele Teilchen zusammentun und kollektive Effekte eine wichtige Rolle spielen. Da sind noch viele Fragen offen. Die Quantensimulation – und zwar nicht am Computer, sondern im Labor – soll helfen, diese Fragen zu beantworten. Zum Beispiel möchte man herausfinden, wie genau Hochtemperatur-Supraleiter funktionieren – und ob man es durch das bessere Verständnis schaffen kann, diese Supraleiter eines Tages dann auch bei Raumtemperatur zu betreiben.
Dr. P. M. SecularInterested in #QuantumMechanics, #QuantumSimulation, or #TensorNetworks? Well, check out my #PhD thesis:
"Parallel Tensor Network Methods for Quantum Lattice Systems: Matrix Product State Simulations on a Supercomputer"
Available to download from my personal website: http://www.secular.me.uk/
Because of the growing multidisciplinary interest in tensor networks, I've tried to make the #thesis as self-contained as possible. I am hoping it will be useful for #Physics, #Chemistry, #Mathematics, and #ComputerScience graduates meeting tensor networks for the first time. It features 700+ references, 100+ figures, 15 epigraphs, and a list of eponyms!
Independent verification of results is an important part of the #scientific process. However - in #physics at least - #replication and #verification studies rarely seem to be published. Despite this, I decided to attempt to verify the results of a groundbreaking Nature Physics paper from 2012, in which the authors describe the first dynamical #quantum #simulator. You can read the fruits of my labour in my #arxiv preprint: "Classical verification of a quantum simulator: local relaxation of a 1D Bose gas". I hope you find it interesting.
https://scirate.com/arxiv/2401.05301
#ScientificProcess #QuantumSimulator #QuantumSimulation #QuantumAdvantage #science #ClassicalVerification #ComputationalPhysics #ParallelComputing #HPC #HighPerfomanceComputing #supercomputer #TensorNetworks #MatrixProductStates #TEBD
Classical verification of a quantum simulator: local relaxation of a 1D Bose gas
In [Nat. Phys. 8, 325-330 (2012)], Trotzky et al. utilize ultracold atoms in an optical lattice to simulate the local relaxation dynamics of a strongly interacting Bose gas "for longer times than present classical algorithms can keep track of". Here, I classically verify the results of this analog quantum simulator by calculating the evolution of the same quasi-local observables up to the time at which they appear "fully relaxed". Using a parallel implementation of the time-evolving block decimation (TEBD) algorithm to simulate the system on a supercomputer, I show that local densities and currents can be calculated in a matter of days rather than weeks. The precision of these numerics allows me to observe deviations from the conjectured power-law decay and to determine the effects of the harmonic trapping potential. As well as providing a robust benchmark for future experimental, theoretical, and numerical methods, this work serves as an example of the independent verification process.
CorradoUnlocking #neutronstar rotation anomalies: Insights from #quantumsimulation
Unlocking neutron star rotation anomalies: Insights from quantum simulation
A collaboration between quantum physicists and astrophysicists, led by Francesca Ferlaino and Massimo Mannarelli, has achieved a significant breakthrough in understanding neutron star glitches. They were able to numerically simulate this enigmatic cosmic phenomenon with ultracold dipolar atoms. This research, now published in Physical Review Letters, establishes a strong link between quantum mechanics and astrophysics and paves the way for quantum simulation of stellar objects from Earth.
Markus HeylMaking Trotterization Adaptive and Energy-Self-Correcting for NISQ Devices and Beyond
Digital quantum simulation requires time discretization by means of Trotterization. A finer time step improves simulation precision but inevitably leads to increased experimental errors for today’s noisy intermediate-scale quantum computers. Check out in our recent publication how to make Trotterization adaptive:
https://journals.aps.org/prxquantum/abstract/10.1103/PRXQuantum.4.030319
