진학프로석·박사 채용 접수 플랫폼

We are seeking candidates for one PhD position at the Center for Theoretical Physics of the Polish Academy of Sciences in Warsaw within the SONATA BIS project titlted“Characterization and certification of quantum resources” financed by the Polish National Science Centre (grant agreement no. UMO-2019/34/E/ST2/00369). The project’s leader is dr hab. inż. Remigiusz Augusiak (http://raugusiak.weebly.com/).

Background:

Quantum correlations, such as quantum entanglement and Bell nonlocality, are among the most fundamental, if not the most important, resources in quantum information theory. They are used, for example, in the quantum cryptographic key distribution protocols.

With the rapid development of quantum technologies in recent years such as random number generators and quantum computing devices the problem of thorough characterization and detection of these resources in realistic physical systems has become increasingly important. These include, in particular, many-body quantum states and quantum networks, i.e., systems composed of nodes connected in arbitrary ways via classical communication channels and entanglement sources, which are crucial for instance for quantum communication protocols.

Another fundamental challenge in the field of quantum technologies is the development of effective tools for certifying and validating the behavior of quantum devices, that is, verifying whether they operate according to specification, truly exploit quantum effects, and produce correct results. A key question in this context is whether a given device operates on a specific quantum state and performs the intended quantum operations. Of particular importance is the device-independent approach, which makes no assumptions about the internal workings of quantum devices. In this setting, Bell nonlocality plays a central role as the key phenomenon enabling such certification.