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pro vyhledávání: '"Jameson, Casey"'
The process of reconstructing quantum states from experimental measurements, accomplished through quantum state tomography (QST), plays a crucial role in verifying and benchmarking quantum devices. A key challenge of QST is to find out how the accura
Externí odkaz:
http://arxiv.org/abs/2411.04452
Quantum state tomography (QST) remains the gold standard for benchmarking and verifying quantum devices. A recent study has proved that, with Haar random projective measurements, only a $O(n^3)$ number of state copies is required to guarantee bounded
Externí odkaz:
http://arxiv.org/abs/2410.02583
Quantum state tomography (QST) remains the gold standard for benchmarking and verification of near-term quantum devices. While QST for a generic quantum many-body state requires an exponentially large amount of resources, most physical quantum states
Externí odkaz:
http://arxiv.org/abs/2408.07115
The speed of elementary quantum gates ultimately sets the limit on the speed at which quantum circuits can operate. For a fixed physical interaction strength between two qubits, the speed of any two-qubit gate is limited even with arbitrarily fast si
Externí odkaz:
http://arxiv.org/abs/2312.09218
Publikováno v:
IEEE Transactions on Information Theory (PP. 5030 - 5056, Volume: 70, July 2024)
The reconstruction of quantum states from experimental measurements, often achieved using quantum state tomography (QST), is crucial for the verification and benchmarking of quantum devices. However, performing QST for a generic unstructured quantum
Externí odkaz:
http://arxiv.org/abs/2306.09432
The speed limit of quantum state transfer in a system of interacting particles is not only important for quantum information processing, but also directly linked to Lieb-Robinson-type bounds that are crucial for understanding various aspects of quant
Externí odkaz:
http://arxiv.org/abs/2303.04804
Autor:
Lidiak, Alexander, Jameson, Casey, Qin, Zhen, Tang, Gongguo, Wakin, Michael B., Zhu, Zhihui, Gong, Zhexuan
It has been recently shown that a state generated by a one-dimensional noisy quantum computer is well approximated by a matrix product operator with a finite bond dimension independent of the number of qubits. We show that full quantum state tomograp
Externí odkaz:
http://arxiv.org/abs/2207.06397
Autor:
Howard, Joel, Lidiak, Alexander, Jameson, Casey, Basyildiz, Bora, Clark, Kyle, Zhao, Tongyu, Bal, Mustafa, Long, Junling, Pappas, David P., Singh, Meenakshi, Gong, Zhexuan
Publikováno v:
Phys. Rev. Research 5, 043194 (2023)
The speed of elementary quantum gates, particularly two-qubit gates, ultimately sets the limit on the speed at which quantum circuits can operate. In this work, we experimentally demonstrate commonly used two-qubit gates at nearly the fastest possibl
Externí odkaz:
http://arxiv.org/abs/2206.07716
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