Zobrazeno 1 - 10
of 893
pro vyhledávání: '"Gray, Stephen P."'
Autor:
Zang, Allen, Kolar, Alexander, Gonzales, Alvin, Chung, Joaquin, Gray, Stephen K., Kettimuthu, Rajkumar, Zhong, Tian, Saleem, Zain H.
We show that quantum advantage in distributed sensing can be achieved with noisy quantum networks. When using depolarized GHZ states as the probe, we derive a closed-form fidelity threshold to achieve advantage over the optimal local sensing strategy
Externí odkaz:
http://arxiv.org/abs/2409.17089
Autor:
Otten, Matthew, Kang, Byeol, Fedorov, Dmitry, Benali, Anouar, Habib, Salman, Alexeev, Yuri, Gray, Stephen K.
As quantum hardware continues to improve, more and more application scientists have entered the field of quantum computing. However, even with the rapid improvements in the last few years, quantum devices, especially for quantum chemistry application
Externí odkaz:
http://arxiv.org/abs/2404.16351
Autor:
Mitra, Abhishek, D'Cunha, Ruhee, Wang, Qiaohong, Hermes, Matthew R., Alexeev, Yuri, Gray, Stephen K., Otten, Matthew, Gagliardi, Laura
We introduce a hybrid quantum-classical algorithm, the localized active space unitary selective coupled cluster singles and doubles (LAS-USCCSD) method. Derived from the localized active space unitary coupled cluster (LAS-UCCSD) method, LAS-USCCSD fi
Externí odkaz:
http://arxiv.org/abs/2404.12927
Quantum computing shows great potential, but errors pose a significant challenge. This study explores new strategies for mitigating quantum errors using artificial neural networks (ANN) and the Yang-Baxter equation (YBE). Unlike traditional error cor
Externí odkaz:
http://arxiv.org/abs/2401.17116
We simulate the dynamics of systems with $N$ = 1-20 qubits coupled to a cavity in order to assess their potential for quantum metrology of a parameter in the open systems limit. The qubits and the cavity are both allowed to have losses and the system
Externí odkaz:
http://arxiv.org/abs/2312.04766
Our cavity quantum electrodynamics calculations demonstrate generation of steady-state entanglement between a plasmonically coupled pair of quantum dots by using single-mode squeezed light source. We show that strong coupling of plasmons to the incom
Externí odkaz:
http://arxiv.org/abs/2312.00608
Going beyond the standard quantum limit in noisy quantum metrology is an important and challenging task. Here we show how Dicke states can be used to surpass the standard quantum limit and achieve the Heisenberg limit in open quantum systems. The sys
Externí odkaz:
http://arxiv.org/abs/2309.12411
In this paper, we describe a tensor network simulation of a neutral atom quantum system under the presence of noise, while introducing a new purity-preserving truncation technique that compromises between the simplicity of the matrix product state an
Externí odkaz:
http://arxiv.org/abs/2309.08572
The time-dependent Hartree-Fock (TDHF) method is an approach to simulate the mean field dynamics of electrons within the assumption that the electrons move independently in their self-consistent average field and within the space of single Slater det
Externí odkaz:
http://arxiv.org/abs/2309.00737
State preparation for quantum algorithms is crucial for achieving high accuracy in quantum chemistry and competing with classical algorithms. The localized active space unitary coupled cluster (LAS-UCC) algorithm iteratively loads a fragment-based mu
Externí odkaz:
http://arxiv.org/abs/2305.18110