NIMBqUS · Novel Inroads into Many-Body Quantum Systems
Horizon 2020 — Marie Skłodowska-Curie Actions
- Duration
- 2016-04-01 → 2018-03-31
- EU contribution
- €158,122
- Participants
- 1
- Scheme
- MSCA-IF-EF-ST
Lines connect the coordinator with its partners.
Results in brief
Novel Inroads into Many-Body Quantum Systems
The NIMBqUS project was concerned with the theoretical study of quantum systems consisting of many interacting particles, so-call quantum many-body system. Understanding these systems represents one of the most significant challenges for modern physics. The overarching objective of the NIMBqUS project was to develop a better understanding of their properties. This has been achieved in three ways: First, a new numerical tool to find the configurations of lowest energy (ground state) of such systems was implemented and released as open-source software. Second, a large amount of general analytical results, that is mathematical statements, derived and proved within the framework of the theory of quantum mechanics, on the behaviour of such many-body systems was obtained. Third, the difficulty of studying certain quantum many-body systems was investigated. Here the aim is not to understand their behavior directly, but rather to find out how difficult it is to understand their behavior - which is of course again a property of the system. While NIMBqUS was a fundamental science project, the way from pure theory to applications is often not as far as one would think. The implemented numerical method allows to find ground states of many-body systems and several of the analytical results yield insight into the behaviour of many-body systems at finite temperature. Understanding these ground and finite temperature states of concrete systems, is fundamental to many applications ranging from quantum chemistry, to material science. Currently, a major, international, and community-wide undertaking is ongoing in which quantum machines are being developed to simulate such systems in instances that cannot anymore be simulated on classical computers. The theory developed here ties in with, and can be tested on, such devices.
Data: CORDIS, © European Union
Project objective
NIMBqUS addresses the need for improving the theoretical understanding of interacting quantum many-body systems caused by recent breakthroughs in the area of quantum simulators.It takes on this challenge on three different levels:1) It will unleash the power of semidefinite programming for finding ground states of quantum systems by both producing a user friendly open source software library that makes these powerful techniques available to a wide audience of researchers - thereby increasing innovation and productivity - and applying them to gain new insights into quantum phase transitions.2) It will make new inroads into the description of complex quantum systems with novel analytical results on many-body localization, systems with long-range interactions, and their thermodynamic properties.3) It will push our understanding of what makes large quantum systems complex to a new level by bridging the gap between the abstract proofs of computational hardness from computer science and state-of-the-art experimental implementations of quantum simulators.All this will be achieved in a multi-disciplinary research action, involving experts from institutions in four European countries, led and coordinated by the fellow. During the project, the fellow will diversify his competences by learning a new programming language and significantly extending his area of expertise to both (quantum) complexity theory and experimental implementations of quantum simulations. He will expand and strengthen his network of scientific contacts, as well as that of the host institute ICFO, and learn from leading experts during secondments. Concrete dissemination events are planned and the fellow will be integrated into the supervision of pre- and postgraduate students.The work plan is designed to bring the researcher into an excellent position to start an independent research group after this fellowship, but also to open up alternative career paths in the high-tech industry.
Original text from CORDIS.
Participants
- FUNDACIO INSTITUT DE CIENCIES FOTONIQUES · CastelldefelsCoordinatorSpain
Links
Data: CORDIS, © European Union