Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Alexey P. Gorshkov"'
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033313 (2024)
We study the problem of implementing arbitrary permutations of qubits under interaction constraints in quantum systems that allow for arbitrarily fast local operations and classical communication (LOCC). In particular, we show examples of speedups ov
Externí odkaz:
https://doaj.org/article/7e682a089dc847e1af4b0958273c9756
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013246 (2024)
The problem of optimally measuring an analytic function of unknown local parameters each linearly coupled to a qubit sensor is well understood, with applications ranging from field interpolation to noise characterization. Here we resolve a number of
Externí odkaz:
https://doaj.org/article/4cf85b65f2fd40ceb46e15910e62e8ba
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013217 (2024)
Dynamical decoupling is effective in reducing gate errors in most quantum computation platforms and is therefore projected to play an essential role in future fault-tolerant constructions. In superconducting circuits, however, it has proven difficult
Externí odkaz:
https://doaj.org/article/31f5cb16fa45401a9f0a18c0f041f03e
Publikováno v:
SciPost Physics, Vol 16, Iss 1, p 033 (2024)
Utilizing the framework of $\mathbb{Z}_2$ lattice gauge theories in the context of Pauli stabilizer codes, we present methodologies for simulating fermions via qubit systems on a two-dimensional square lattice. We investigate the symplectic automorph
Externí odkaz:
https://doaj.org/article/e7719cc2c2264f6e81a87d258ce390b7
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033228 (2023)
We derive a family of optimal protocols, in the sense of saturating the quantum Cramér-Rao bound, for measuring a linear combination of d field amplitudes with quantum sensor networks, a key subprotocol of general quantum sensor network applications
Externí odkaz:
https://doaj.org/article/c94786cb068d41f59b9e3b8073a39137
Autor:
Andrew Y. Guo, Abhinav Deshpande, Su-Kuan Chu, Zachary Eldredge, Przemyslaw Bienias, Dhruv Devulapalli, Yuan Su, Andrew M. Childs, Alexey V. Gorshkov
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p L042016 (2022)
The standard circuit model for quantum computation presumes the ability to directly perform gates between arbitrary pairs of qubits, which is unlikely to be practical for large-scale experiments. Power-law interactions with strength decaying as 1/r^{
Externí odkaz:
https://doaj.org/article/95b24e2d24d0498f88cffb6fcb939934
Autor:
Mathias Van Regemortel, Oles Shtanko, Luis Pedro García-Pintos, Abhinav Deshpande, Hossein Dehghani, Alexey V. Gorshkov, Mohammad Hafezi
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p L032021 (2022)
The dynamics of open quantum systems is generally described by a master equation, which describes the loss of information into the environment. By using a simple model of uncoupled emitters, we illustrate how the recovery of this information depends
Externí odkaz:
https://doaj.org/article/a86625ba909b49fa9300c3f1bddc3b22
Publikováno v:
PRX Quantum, Vol 4, Iss 2, p 020349 (2023)
By tightening the conventional Lieb-Robinson bounds to better handle systems that lack translation invariance, we determine the extent to which “weak links” suppress operator growth in disordered one-dimensional spin chains. In particular, we pro
Externí odkaz:
https://doaj.org/article/500bd8e1402a403e8529fc06d24e23ad
Publikováno v:
Quantum, Vol 7, p 1017 (2023)
Bosonic Gaussian states are a special class of quantum states in an infinite dimensional Hilbert space that are relevant to universal continuous-variable quantum computation as well as to near-term quantum sampling tasks such as Gaussian Boson Sampli
Externí odkaz:
https://doaj.org/article/18d77bc1ac1d457f9cac212b8c9eadf4
Autor:
Minh C. Tran, Chi-Fang Chen, Adam Ehrenberg, Andrew Y. Guo, Abhinav Deshpande, Yifan Hong, Zhe-Xuan Gong, Alexey V. Gorshkov, Andrew Lucas
Publikováno v:
Physical Review X, Vol 13, Iss 2, p 029901 (2023)
Externí odkaz:
https://doaj.org/article/392fde03c78f453480b949f37a877436