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Topological phenomena in quantum walks; elementary introduction to the physics of topological phases
Takuya Kitagawa
Discrete quantum walks are dynamical protocols for controlling a single quantum particle. Despite of its simplicity, quantum walks display rich topological phenomena and provide on…
Relaxation and Pre-thermalization in an Isolated Quantum System
Michael Gring, Maximilian Kuhnert, Tim Langen +7
Understanding relaxation processes is an important unsolved problem in many areas of physics. A key challenge in studying such non-equilibrium dynamics is the scarcity of experimen…
Observation of topologically protected bound states in a one dimensional photonic system
Takuya Kitagawa, Matthew A. Broome, Alessandro Fedrizzi +6
One of the most striking features of quantum mechanics is the appearance of phases of matter with topological origins. These phases result in remarkably robust macroscopic phenomen…
The dynamics and prethermalization of one dimensional quantum systems probed through the full distributions of quantum noise
Takuya Kitagawa, Adilet Imambekov, Jörg Schmiedmayer +1
Quantum noise correlations have been employed in several areas in physics including condensed matter, quantum optics and ultracold atom to reveal non-classical states of the system…
Transport properties of non-equilibrium systems under the application of light: Photo-induced quantum Hall insulators without Landau levels
Takuya Kitagawa, Takashi Oka, Arne Brataas +2
In this paper, we study transport properties of non-equilibrium systems under the application of light in many-terminal measurements, using the Floquet picture. We propose and demo…
Majorana Fermions in Equilibrium and Driven Cold Atom Quantum Wires
Liang Jiang, Takuya Kitagawa, Jason Alicea +7
We introduce a new approach to create and detect Majorana fermions using optically trapped 1D fermionic atoms. In our proposed setup, two internal states of the atoms couple via an…