News & Activities

Application Deadline: 1 Nov 2024 - 20:00 (Europe/Paris)Organisation/Company: Université de StrasbourgDepartment: Centre Européen de Sciences Quantiques - Institut de Science et d'Ingénierie Supramoléculaires (ISIS)Research Field: Physics » Quantum mechanicsResearcher Profile: First Stage Researcher (R1)Positions: PhD PositionsOffer DescriptionThe development of new quantum technologies heavily relies on benchmarks against numerical simulations. However, accurately simulating quantum systems made of many constituents is exponentially complex, especially for the dynamical processes essential to many computations in fundamental physics, in quantum chemistry or in material science. Existing methods typically face the “exponential wall of complexity” which drastically limits our ability to describe complex quantum states of matter. There is an urgent need for methods that provide precise, reliable predictions for large quantum systems and pave the way for future breakthroughs. To tackle this very ambitious problem, we propose to restrict to a specific family of quantum many-body systems that undergo ‘nearly integrable’ dynamics, meaning that their dynamics on experimental time scales is non-chaotic and is governed by a proximate integrable model. Recent theory progress suggests that this family of systems is particularly promising for the development of new computational methods. This problem will be attacked through the prism of concrete toy models in one spatial dimension (spin chains), where the goal is to (i) identify quantifiers based on entanglement and quantum information concepts that are sensitive to the type of dynamics (integrable vs. chaotic) and allow to distinguish between them and (ii) develop new geometries of Tensor Network variational wavefunctions that can accurately approximate the time evolution of the many-body wavefunction and circumvent the exponential wall of complexity.The PhD position is for 3 years, and the PhD candidate will be supervised by Jerome Dubail at the Centre Europeen de Sciences Quantiques in Strasbourg, France.Where to apply: E-mail: j.dubail@unistra.frRequirementsResearch Field: Physics » Quantum mechanicsEducation Level: Master Degree or equivalentLink: https://euraxess.ec.europa.eu/jobs/271235Website: https://www.cesq.eu/