Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Kjaergaard, Morten"'
Autor:
Krøjer, Svend, Dahl, Anders Enevold, Christensen, Kasper Sangild, Kjaergaard, Morten, Flensberg, Karsten
Fast, high fidelity control and readout of protected superconducting qubits are fundamentally challenging due to their inherent insensitivity. We propose a flux qubit variation which enjoys a tunable level of protection against relaxation to resolve
Externí odkaz:
http://arxiv.org/abs/2303.01102
Multi-qubit parity measurements are at the core of many quantum error correction schemes. Extracting multi-qubit parity information typically involves using a sequence of multiple two-qubit gates. In this paper, we propose a superconducting circuit d
Externí odkaz:
http://arxiv.org/abs/2302.00719
Autor:
Leroux, Catherine, Parra-Rodriguez, Adrian, Shillito, Ross, Di Paolo, Agustin, Oliver, William D., Marcus, Charles M., Kjaergaard, Morten, Gyenis, András, Blais, Alexandre
We propose to couple the flux degree of freedom of one mode with the charge degree of freedom of a second mode in a hybrid superconducting-semiconducting architecture. Nonreciprocity can arise in this architecture in the presence of external static m
Externí odkaz:
http://arxiv.org/abs/2209.06194
Publikováno v:
PRX Quantum 3, 030329 (2022)
Novel qubits with intrinsic noise protection constitute a promising route for improving the coherence of quantum information in superconducting circuits. However, many protected superconducting qubits exhibit relatively low transition frequencies, wh
Externí odkaz:
http://arxiv.org/abs/2203.04323
Publikováno v:
Phys. Rev. E 105, 044141 (2022)
Maxwell's demon is the quintessential example of information control, which is necessary for designing quantum devices. In thermodynamics, the demon is an intelligent being who utilizes the entropic nature of information to sort excitations between r
Externí odkaz:
http://arxiv.org/abs/2108.08855
Autor:
Karamlou, Amir H., Braumüller, Jochen, Yanay, Yariv, Di Paolo, Agustin, Harrington, Patrick, Kannan, Bharath, Kim, David, Kjaergaard, Morten, Melville, Alexander, Muschinske, Sarah, Niedzielski, Bethany, Vepsäläinen, Antti, Winik, Roni, Yoder, Jonilyn L., Schwartz, Mollie, Tahan, Charles, Orlando, Terry P., Gustavsson, Simon, Oliver, William D.
Publikováno v:
npj Quantum Inf 8, 35 (2022)
Particle transport and localization phenomena in condensed-matter systems can be modeled using a tight-binding lattice Hamiltonian. The ideal experimental emulation of such a model utilizes simultaneous, high-fidelity control and readout of each latt
Externí odkaz:
http://arxiv.org/abs/2107.05035
Publikováno v:
Phys. Rev. Lett. 127, 233601 (2021)
A chiral photonic interface is a quantum system that has different probabilities for emitting photons to the left and right. An on-chip compatible chiral interface is attractive for both fundamental studies of light-matter interactions and applicatio
Externí odkaz:
http://arxiv.org/abs/2106.15744
Autor:
Samach, Gabriel O., Greene, Ami, Borregaard, Johannes, Christandl, Matthias, Barreto, Joseph, Kim, David K., McNally, Christopher M., Melville, Alexander, Niedzielski, Bethany M., Sung, Youngkyu, Rosenberg, Danna, Schwartz, Mollie E., Yoder, Jonilyn L., Orlando, Terry P., Wang, Joel I-Jan, Gustavsson, Simon, Kjaergaard, Morten, Oliver, William D.
Publikováno v:
Phys. Rev. Applied 18, 064056 (2022)
As progress is made towards the first generation of error-corrected quantum computers, robust characterization and validation protocols are required to assess the noise environments of physical quantum processors. While standard coherence metrics and
Externí odkaz:
http://arxiv.org/abs/2105.02338
Autor:
Vepsäläinen, Antti, Winik, Roni, Karamlou, Amir H., Braumüller, Jochen, Di Paolo, Agustin, Sung, Youngkyu, Kannan, Bharath, Kjaergaard, Morten, Kim, David K., Melville, Alexander J., Niedzielski, Bethany M., Yoder, Jonilyn L., Gustavsson, Simon, Oliver, William D.
Superconducting qubits are a promising platform for building a larger-scale quantum processor capable of solving otherwise intractable problems. In order for the processor to reach practical viability, the gate errors need to be further suppressed an
Externí odkaz:
http://arxiv.org/abs/2105.01107
Autor:
Braumüller, Jochen, Karamlou, Amir H., Yanay, Yariv, Kannan, Bharath, Kim, David, Kjaergaard, Morten, Melville, Alexander, Niedzielski, Bethany M., Sung, Youngkyu, Vepsäläinen, Antti, Winik, Roni, Yoder, Jonilyn L., Orlando, Terry P., Gustavsson, Simon, Tahan, Charles, Oliver, William D.
Publikováno v:
Nature Physics volume 18, pages 172-178 (2022)
Interacting many-body quantum systems show a rich array of physical phenomena and dynamical properties, but are notoriously difficult to study: they are challenging analytically and exponentially difficult to simulate on classical computers. Small-sc
Externí odkaz:
http://arxiv.org/abs/2102.11751