Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Seif, Alireza"'
Autor:
Wang, Yu-Xin, Bringewatt, Jacob, Seif, Alireza, Brady, Anthony J., Oh, Changhun, Gorshkov, Alexey V.
In this work, we propose a new form of exponential quantum advantage in the context of sensing correlated noise. Specifically, we focus on the problem of estimating parameters associated with Lindblad dephasing dynamics, and show that entanglement ca
Externí odkaz:
http://arxiv.org/abs/2410.05878
Autor:
Seif, Alireza, Chen, Senrui, Majumder, Swarnadeep, Liao, Haoran, Wang, Derek S., Malekakhlagh, Moein, Javadi-Abhari, Ali, Jiang, Liang, Minev, Zlatko K.
Learning unknown processes affecting a quantum system reveals underlying physical mechanisms and enables suppression, mitigation, and correction of unwanted effects. Describing a general quantum process requires an exponentially large number of param
Externí odkaz:
http://arxiv.org/abs/2408.03376
Open driven quantum systems have defined a powerful paradigm of non-equilibrium phases and phase transitions; however, quantum phase transitions are generically not expected in this setting due to the decohering effect of dissipation. In this work, w
Externí odkaz:
http://arxiv.org/abs/2405.20518
In dynamic quantum circuits, classical information from mid-circuit measurements is fed forward during circuit execution. This emerging capability of quantum computers confers numerous advantages that can enable more efficient and powerful protocols
Externí odkaz:
http://arxiv.org/abs/2403.09514
Autor:
Seif, Alireza, Liao, Haoran, Tripathi, Vinay, Krsulich, Kevin, Malekakhlagh, Moein, Amico, Mirko, Jurcevic, Petar, Javadi-Abhari, Ali
Publikováno v:
2024 ACM/IEEE 51st Annual International Symposium on Computer Architecture (ISCA), Buenos Aires, Argentina, 2024, pp. 310-324
Coherent errors, and especially those that occur in correlation among a set of qubits, are detrimental for large-scale quantum computing. Correlations in noise can occur as a result of spatial and temporal configurations of instructions executing on
Externí odkaz:
http://arxiv.org/abs/2403.06852
Autor:
Hu, Hong-Ye, Gu, Andi, Majumder, Swarnadeep, Ren, Hang, Zhang, Yipei, Wang, Derek S., You, Yi-Zhuang, Minev, Zlatko, Yelin, Susanne F., Seif, Alireza
Extracting information efficiently from quantum systems is a major component of quantum information processing tasks. Randomized measurements, or classical shadows, enable predicting many properties of arbitrary quantum states using few measurements.
Externí odkaz:
http://arxiv.org/abs/2402.17911
Autor:
Yuan, Ming, Seif, Alireza, Lingenfelter, Andrew, Schuster, David I., Clerk, Aashish A., Jiang, Liang
Resonators with weak single-photon self-Kerr nonlinearities can theoretically be used to prepare Fock states in the presence of a loss much larger than their nonlinearities. Two necessary ingredients are large displacements and a two-photon (parametr
Externí odkaz:
http://arxiv.org/abs/2312.15783
Publikováno v:
PRX Quantum 5, 030315 (2024)
Generalized measurements, also called positive operator-valued measures (POVMs), can offer advantages over projective measurements in various quantum information tasks. Here, we realize a generalized measurement of one and two superconducting qubits
Externí odkaz:
http://arxiv.org/abs/2312.14087
Publikováno v:
Phys. Rev. Lett. 133, 050402 (2024)
We study the interplay between measurement-induced dynamics and conditional unitary evolution in quantum systems. We numerically and analytically investigate commuting random measurement and feedforward (MFF) processes, and find a sharp transition in
Externí odkaz:
http://arxiv.org/abs/2310.18305
The rich entanglement dynamics and transitions exhibited by monitored quantum systems typically only exist in the conditional state, making observation extremely difficult. In this work we construct a general recipe for mimicking the conditional enta
Externí odkaz:
http://arxiv.org/abs/2310.01338