Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Valentin, Sascha R."'
Autor:
Tomm, Natasha, Antoniadis, Nadia O., Janovitch, Marcelo, Brunelli, Matteo, Schott, Rüdiger, Valentin, Sascha R., Wieck, Andreas D., Ludwig, Arne, Potts, Patrick, Javadi, Alisa, Warburton, Richard J.
Publikováno v:
Phys. Rev. Lett. 133, 083602 (2024)
A quantum emitter interacting with photons in a single optical-mode constitutes a one-dimensional atom. A coherent and efficiently coupled one-dimensional atom provides a large nonlinearity, enabling photonic quantum gates. Achieving a high coupling
Externí odkaz:
http://arxiv.org/abs/2402.12568
Autor:
Javadi, Alisa, Tomm, Natasha, Antoniadis, Nadia O., Brash, Alistair J., Schott, Rüdiger, Valentin, Sascha R., Wieck, Andreas D., Ludwig, Arne, Warburton, Richard J.
A major challenge in generating single photons with a single emitter is to excite the emitter while avoiding laser leakage into the collection path. Ideally, any scheme to suppress this leakage should not result in a loss in efficiency of the single-
Externí odkaz:
http://arxiv.org/abs/2301.13806
Autor:
Tomm, Natasha, Mahmoodian, Sahand, Antoniadis, Nadia O., Schott, Rüdiger, Valentin, Sascha R., Wieck, Andreas D., Ludwig, Arne, Javadi, Alisa, Warburton, Richard J.
Publikováno v:
Nature Physics (2023)
The interaction between photons and a single two-level atom constitutes a fundamental paradigm in quantum physics. The nonlinearity provided by the atom means that the light-matter interaction depends strongly on the number of photons interacting wit
Externí odkaz:
http://arxiv.org/abs/2205.03309
Autor:
Antoniadis, Nadia O., Tomm, Natasha, Jakubczyk, Tomasz, Schott, Rüdiger, Valentin, Sascha R., Wieck, Andreas D., Ludwig, Arne, Warburton, Richard J., Javadi, Alisa
In nanostructures, the light-matter interaction can be engineered to be chiral. In the fully quantum regime, a chiral one-dimensional atom, a photon propagating in one direction interacts with the atom; a photon propagating in the other direction doe
Externí odkaz:
http://arxiv.org/abs/2110.02650
Autor:
Tomm, Natasha, Korsch, Alexander R., Javadi, Alisa, Najer, Daniel, Schott, Rüdiger, Valentin, Sascha R., Wieck, Andreas D., Ludwig, Arne, Warburton, Richard J.
Publikováno v:
Phys. Rev. Applied 15, 054061 (2021)
A splitting of the fundamental optical modes in micro/nano-cavities comprising semiconductor heterostructures is commonly observed. Given that this splitting plays an important role for the light-matter interaction and hence quantum technology applic
Externí odkaz:
http://arxiv.org/abs/2102.09327
Autor:
Najer, Daniel, Tomm, Natasha, Javadi, Alisa, Korsch, Alexander R., Petrak, Benjamin, Riedel, Daniel, Dolique, Vincent, Valentin, Sascha R., Schott, Rüdiger, Wieck, Andreas D., Ludwig, Arne, Warburton, Richard J.
Publikováno v:
Phys. Rev. Applied 15, 044004 (2021)
We present a surface passivation method that reduces surface-related losses by almost two orders of magnitude in a highly miniaturized GaAs open microcavity. The microcavity consists of a curved dielectric distributed Bragg reflector (DBR) with radiu
Externí odkaz:
http://arxiv.org/abs/2012.05104
Autor:
Tomm, Natasha, Javadi, Alisa, Antoniadis, Nadia O., Najer, Daniel, Löbl, Matthias C., Korsch, Alexander R., Schott, Rüdiger, Valentin, Sascha R., Wieck, Andreas D., Ludwig, Arne, Warburton, Richard J.
A single photon source is a key enabling technology in device-independent quantum communication, quantum simulation for instance boson sampling, linear optics-based and measurement-based quantum computing. These applications involve many photons and
Externí odkaz:
http://arxiv.org/abs/2007.12654
Autor:
Matsuo, Sadashige, Kuroyama, Kazuyuki, Yabunaka, Shunsuke, Valentin, Sascha R., Ludwig, Arne, Wieck, Andreas D., Tarucha, Seigo
Publikováno v:
Phys. Rev. Research 2, 033120 (2020)
We investigate the full counting statistics (FCS) of spin-conserving and spin-flip charge transitions in Pauli-spin blockade regime of a GaAs double quantum dot. A theoretical model is proposed to evaluate all spin-conserving and spin-flip tunnel rat
Externí odkaz:
http://arxiv.org/abs/1909.12027
Autor:
Najer, Daniel, Söllner, Immo, Sekatski, Pavel, Dolique, Vincent, Löbl, Matthias C., Riedel, Daniel, Schott, Rüdiger, Starosielec, Sebastian, Valentin, Sascha R., Wieck, Andreas D., Sangouard, Nicolas, Ludwig, Arne, Warburton, Richard J.
Publikováno v:
Nature 575, 622 (2019)
The strong-coupling regime of cavity-quantum-electrodynamics (cQED) represents light-matter interaction at the fully quantum level. Adding a single photon shifts the resonance frequencies, a profound nonlinearity. cQED is a test-bed of quantum optics
Externí odkaz:
http://arxiv.org/abs/1812.08662
Autor:
Kuroyama, Kazuyuki, Larsson, Marcus, Muramoto, Jo, Heya, Kentaro, Fujita, Takafumi, Allison, Giles, Valentin, Sascha R., Ludwig, Arne, Wieck, Andreas D., Matsuo, Sadashige, Oiwa, Akira, Tarucha, Seigo
Publikováno v:
Phys. Rev. B 99, 085203 (2019)
Electron spins in GaAs quantum dots have been used to make qubits with high-fidelity gating and long coherence time, necessary ingredients in solid-state quantum computing. The quantum dots can also host photon qubits with energy applicable for optic
Externí odkaz:
http://arxiv.org/abs/1805.05147