Zobrazeno 1 - 10
of 4 801
pro vyhledávání: '"A. Wallraff"'
Autor:
Song, Yongxin, Beltrán, Liberto, Besedin, Ilya, Kerschbaum, Michael, Pechal, Marek, Swiadek, François, Hellings, Christoph, Zanuz, Dante Colao, Flasby, Alexander, Besse, Jean-Claude, Wallraff, Andreas
When using unitary gate sequences, the growth in depth of many quantum circuits with output size poses significant obstacles to practical quantum computation. The quantum fan-out operation, which reduces the circuit depth of quantum algorithms such a
Externí odkaz:
http://arxiv.org/abs/2409.06989
Autor:
O'Sullivan, James, Reuer, Kevin, Grigorev, Aleksandr, Dai, Xi, Hernández-Antón, Alonso, Muñoz-Arias, Manuel H., Hellings, Christoph, Flasby, Alexander, Zanuz, Dante Colao, Besse, Jean-Claude, Blais, Alexandre, Malz, Daniel, Eichler, Christopher, Wallraff, Andreas
Multidimensional cluster states are a key resource for robust quantum communication, measurement-based quantum computing and quantum metrology. Here, we present a device capable of emitting large-scale entangled microwave photonic states in a two dim
Externí odkaz:
http://arxiv.org/abs/2409.06623
Autor:
Storz, Simon, Kulikov, Anatoly, Schär, Josua D., Barizien, Victor, Valcarce, Xavier, Berterottière, Florence, Sangouard, Nicolas, Bancal, Jean-Daniel, Wallraff, Andreas
Self-testing protocols enable the certification of quantum systems in a device-independent manner, i.e. without knowledge of the inner workings of the quantum devices under test. Here, we demonstrate this high standard for characterization routines w
Externí odkaz:
http://arxiv.org/abs/2408.01299
Autor:
Zanuz, Dante Colao, Ficheux, Quentin, Michaud, Laurent, Orekhov, Alexei, Hanke, Kilian, Flasby, Alexander, Panah, Mohsen Bahrami, Norris, Graham J., Kerschbaum, Michael, Remm, Ants, Swiadek, François, Hellings, Christoph, Lazăr, Stefania, Scarato, Colin, Lacroix, Nathan, Krinner, Sebastian, Eichler, Christopher, Wallraff, Andreas, Besse, Jean-Claude
The dominant contribution to the energy relaxation of state-of-the-art superconducting qubits is often attributed to their coupling to an ensemble of material defects which behave as two-level systems. These defects have varying microscopic character
Externí odkaz:
http://arxiv.org/abs/2407.18746
Autor:
A. J. Landig, J. V. Koski, P. Scarlino, C. Müller, J. C. Abadillo-Uriel, B. Kratochwil, C. Reichl, W. Wegscheider, S. N. Coppersmith, Mark Friesen, A. Wallraff, T. Ihn, K. Ensslin
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Different qubit platforms each have their own advantages and disadvantages. By engineering couplings between them it may be possible to create a more capable hybrid device. Here the authors demonstrate coherent coupling between a semiconductor spin q
Externí odkaz:
https://doaj.org/article/76e42217a7304ee8a419f1ac6db17a12
Autor:
P. Scarlino, D. J. van Woerkom, U. C. Mendes, J. V. Koski, A. J. Landig, C. K. Andersen, S. Gasparinetti, C. Reichl, W. Wegscheider, K. Ensslin, T. Ihn, A. Blais, A. Wallraff
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
Hybrid quantum devices combine different platforms with the prospect of exploiting the advantages of each. Scarlino et al. demonstrate strong, coherent coupling between a semiconductor qubit and a superconducting qubit by using a high-impedance super
Externí odkaz:
https://doaj.org/article/dbe4c1849d3a45828d799a1475ded117
Autor:
P. Scarlino, J. H. Ungerer, D. J. van Woerkom, M. Mancini, P. Stano, C. Müller, A. J. Landig, J. V. Koski, C. Reichl, W. Wegscheider, T. Ihn, K. Ensslin, A. Wallraff
Publikováno v:
Physical Review X, Vol 12, Iss 3, p 031004 (2022)
Semiconductor quantum dots in which electrons or holes are isolated via electrostatic potentials generated by surface gates are promising building blocks for semiconductor-based quantum technology. Here, we investigate double-quantum-dot (DQD) charge
Externí odkaz:
https://doaj.org/article/bffd58acfea0493787f7ad9b644e949b
Autor:
Ruckriegel, Max J., Gächter, Lisa M., Kealhofer, David, Panah, Mohsen Bahrami, Tong, Chuyao, Adam, Christoph, Masseroni, Michele, Duprez, Hadrien, Garreis, Rebekka, Watanabe, Kenji, Taniguchi, Takashi, Wallraff, Andreas, Ihn, Thomas, Ensslin, Klaus, Huang, Wei Wister
We implement circuit quantum electrodynamics (cQED) with quantum dots in bilayer graphene, a maturing material platform for semiconductor qubits that can host long-lived spin and valley states. The presented device combines a high-impedance ($Z_\math
Externí odkaz:
http://arxiv.org/abs/2312.14629
Autor:
B. Kratochwil, J. V. Koski, A. J. Landig, P. Scarlino, J. C. Abadillo-Uriel, C. Reichl, S. N. Coppersmith, W. Wegscheider, Mark Friesen, A. Wallraff, T. Ihn, K. Ensslin
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013171 (2021)
The energy landscape of a single electron in a triple quantum dot can be tuned such that the energy separation between ground and excited states becomes a flat function of the relevant gate voltages. These so-called sweet spots are beneficial for cha
Externí odkaz:
https://doaj.org/article/5ceae83c4594462a83be5e5343f49969
Autor:
Lacroix, Nathan, Hofele, Luca, Remm, Ants, Benhayoune-Khadraoui, Othmane, McDonald, Alexander, Shillito, Ross, Lazar, Stefania, Hellings, Christoph, Swiadek, Francois, Colao-Zanuz, Dante, Flasby, Alexander, Panah, Mohsen Bahrami, Kerschbaum, Michael, Norris, Graham J., Blais, Alexandre, Wallraff, Andreas, Krinner, Sebastian
Quantum computers will require quantum error correction to reach the low error rates necessary for solving problems that surpass the capabilities of conventional computers. One of the dominant errors limiting the performance of quantum error correcti
Externí odkaz:
http://arxiv.org/abs/2309.07060