Zobrazeno 1 - 10
of 575
pro vyhledávání: '"Girvin, S."'
Adaptive quantum circuits, which combine local unitary gates, midcircuit measurements, and feedforward operations, have recently emerged as a promising avenue for efficient state preparation, particularly on near-term quantum devices limited to shall
Externí odkaz:
http://arxiv.org/abs/2404.16083
Quantum random access memory (QRAM) is a common architecture resource for algorithms with many proposed applications, including quantum chemistry, windowed quantum arithmetic, unstructured search, machine learning, and quantum cryptography. Here we p
Externí odkaz:
http://arxiv.org/abs/2310.08288
Circuit QED enables the combined use of qubits and oscillator modes. Despite a variety of available gate sets, many hybrid qubit-boson (i.e., oscillator) operations are realizable only through optimal control theory (OCT) which is oftentimes intracta
Externí odkaz:
http://arxiv.org/abs/2303.15542
Autor:
Lu, Yao, Maiti, Aniket, Garmon, John W. O., Ganjam, Suhas, Zhang, Yaxing, Claes, Jahan, Frunzio, Luigi, Girvin, S. M., Schoelkopf, Robert J.
Publikováno v:
Nature Communications 14, 5767 (2023)
Fast, high-fidelity operations between microwave resonators are an important tool for bosonic quantum computation and simulation with superconducting circuits. An attractive approach for implementing these operations is to couple these resonators via
Externí odkaz:
http://arxiv.org/abs/2303.00959
Autor:
Chapman, Benjamin J., de Graaf, Stijn J., Xue, Sophia H., Zhang, Yaxing, Teoh, James, Curtis, Jacob C., Tsunoda, Takahiro, Eickbusch, Alec, Read, Alexander P., Koottandavida, Akshay, Mundhada, Shantanu O., Frunzio, Luigi, Devoret, M. H., Girvin, S. M., Schoelkopf, R. J.
Publikováno v:
PRX Quantum 4, 020355. Published 28 June 2023
Encoding a qubit in a high quality superconducting microwave cavity offers the opportunity to perform the first layer of error correction in a single device, but presents a challenge: how can quantum oscillators be controlled while introducing a mini
Externí odkaz:
http://arxiv.org/abs/2212.11929
Autor:
Sivak, V. V., Eickbusch, A., Royer, B., Singh, S., Tsioutsios, I., Ganjam, S., Miano, A., Brock, B. L., Ding, A. Z., Frunzio, L., Girvin, S. M., Schoelkopf, R. J., Devoret, M. H.
The ambition of harnessing the quantum for computation is at odds with the fundamental phenomenon of decoherence. The purpose of quantum error correction (QEC) is to counteract the natural tendency of a complex system to decohere. This cooperative pr
Externí odkaz:
http://arxiv.org/abs/2211.09116
The ground state of the spin-1 Affleck, Kennedy, Lieb and Tasaki (AKLT) model is a paradigmatic example of both a matrix product state and a symmetry-protected topological phase, and additionally holds promise as a resource state for measurement-base
Externí odkaz:
http://arxiv.org/abs/2210.17548
Publikováno v:
Phys. Rev. Lett. 131, 190601 (2023)
Efficient suppression of errors without full error correction is crucial for applications with NISQ devices. Error mitigation allows us to suppress errors in extracting expectation values without the need for any error correction code, but its applic
Externí odkaz:
http://arxiv.org/abs/2210.10733
Autor:
Frattini, Nicholas E., Cortiñas, Rodrigo G., Venkatraman, Jayameenakshi, Xiao, Xu, Su, Qile, Lei, Chan U, Chapman, Benjamin J., Joshi, Vidul R., Girvin, S. M., Schoelkopf, Robert J., Puri, Shruti, Devoret, Michel H.
By applying a microwave drive to a specially designed Josephson circuit, we have realized an elementary quantum optics model, the squeezed Kerr oscillator. This model displays, as the squeezing amplitude is increased, a cross-over from a single groun
Externí odkaz:
http://arxiv.org/abs/2209.03934
In hybrid circuit QED architectures containing both ancilla qubits and bosonic modes, a controlled beam splitter gate is a powerful resource. It can be used to create (up to a controlled-parity operation) an ancilla-controlled SWAP gate acting on two
Externí odkaz:
http://arxiv.org/abs/2112.04375