Kharkiv Quantum Center

   The Kharkiv Quantum Center will embark on a multifaceted journey of research that delves into the captivating realm of quantum phenomena, encompassing both theoretical and experimental domains. The world's intrinsic quantum nature unfolds in mesmerizing ways on the mesoscopic scale, revealing unique and valuable properties of matter. KQC's endeavors will deeply root in the study of these phenomena, with a twofold approach: a theoretical exploration that sharpens our understanding of quantum dynamics, and experimental investigations that bridge theory with tangible reality.  

Theoretical Exploration:

      KQC's theoretical research is intricately woven with the modern toolbox of condensed matter theory. This intellectual framework serves as a potent lens through which we decipher the profound intricacies of quantum phenomena that emerge within mesoscopic systems. Our focus extends to phenomena such as Rabi oscillations and Landau-Zener-Stuckelberg-Majorana transitions, unraveling their fundamental essence through theoretical analyses. We also focus on aspects of quantum control and dynamic processes in many-body systems, development of tensor-network algorithms and mean-field approaches for lattice problems, studies of phase transitions and critical behavior in quantum systems. Yet, our commitment to advancing knowledge goes beyond theoretical musings. We tightly intertwine our research with experimental pursuits, allowing us to validate and enrich theoretical insights against empirical observations.

Experimental Endeavors:

KQC's experimental endeavors mirror its theoretical counterparts, albeit in the tangible realm of laboratory exploration. We explore dynamic quantum phenomena within mesoscopic systems, encompassing a diverse array of structures like superconducting circuits, low-dimensional semiconductor-based setups, and nanomechanical resonators. By doing so, we engage with the tangible manifestations of quantum dynamics and harness their peculiar traits. Our experimental focus isn't limited to theoretical validation; we seek to uncover new insights and applications that can transform our technological landscape.

Nanostructured Superconducting Materials: 

KQC's research extends to the frontier of nanostructured superconducting materials for quantum detection. Our recent achievements encompass innovative methodologies for quantitatively determining vortex properties in superconducting strips. We explore the dynamics of interacting vortices within superconducting films and demonstrate ultrafast vortex dynamics in specific materials.  

Our contribution to superconducting nanowire single-photon detectors (SNSPDs) for near-infrared wavelengths marks a significant milestone. We're pioneers in developing MoSi-based detectors, showcasing their applicability in waveguide-integrated setups and microwave emission from superconducting vortices in multilayered structures.

Topological Materials, Unconventional Superconductors:

Exploration of the Center will involve the investigation of topological materials and superconductors with nontrivial pairing. Our methods will encompass Yanson point-contact spectroscopy and Andreev reflection spectroscopy, unveiling the spectral functions of electron-boson interactions that underpin superconducting pair formations. These insights hold promise for qubit development in topological quantum computers based on unique quantum materials and unconventional superconductors.

Quantum Dots in Solar Cells:

KQC's research will expand its scope to the realm of sustainable energy by delving into the application of quantum dots in solar cells. By harnessing the unique attributes of quantum dots, our goal is to elevate the efficiency and performance of photovoltaic systems. Quantum dots possess adjustable electronic and optical properties, positioning them as promising contenders for capturing and converting sunlight into electricity with heightened precision. Through systematic experimentation and theoretical modeling, we will strive to unveil innovative methods for seamlessly integrating quantum dots into solar cell architectures, potentially reshaping the landscape of renewable energy. This facet of our research will exemplify our commitment to leveraging quantum principles for tangible progress, as we address pressing global challenges and push the boundaries of both quantum science and solar technology.