Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Nezami, Sepehr"'
Autor:
Nezami, Sepehr, Haah, Jeongwan
Publikováno v:
Phys. Rev. A 106, 012437 (2022)
Triorthogonal codes are a class of quantum error correcting codes used in magic state distillation protocols. We classify all triorthogonal codes with $n+k \le 38$, where $n$ is the number of physical qubits and $k$ is the number of logical qubits of
Externí odkaz:
http://arxiv.org/abs/2107.09684
Autor:
Nezami, Sepehr
Computing the distribution of permanents of random matrices has been an outstanding open problem for several decades. In quantum computing, "anti-concentration" of this distribution is an unproven input for the proof of hardness of the task of boson-
Externí odkaz:
http://arxiv.org/abs/2104.06423
Autor:
Nezami, Sepehr, Lin, Henry W., Brown, Adam R., Gharibyan, Hrant, Leichenauer, Stefan, Salton, Grant, Susskind, Leonard, Swingle, Brian, Walter, Michael
Publikováno v:
PRX Quantum 4, 010321 (2023)
In [1] we discussed how quantum gravity may be simulated using quantum devices and gave a specific proposal -- teleportation by size and the phenomenon of size-winding. Here we elaborate on what it means to do 'Quantum Gravity in the Lab' and how siz
Externí odkaz:
http://arxiv.org/abs/2102.01064
Publikováno v:
Quantum 6, 657 (2022)
We propose a method to reliably and efficiently extract the fidelity of many-qubit quantum circuits composed of continuously parametrized two-qubit gates called matchgates. This method, which we call matchgate benchmarking, relies on advanced techniq
Externí odkaz:
http://arxiv.org/abs/2011.13048
Autor:
Brown, Adam R., Gharibyan, Hrant, Leichenauer, Stefan, Lin, Henry W., Nezami, Sepehr, Salton, Grant, Susskind, Leonard, Swingle, Brian, Walter, Michael
Publikováno v:
PRX Quantum 4, 010320 (2023)
With the long-term goal of studying models of quantum gravity in the lab, we propose holographic teleportation protocols that can be readily executed in table-top experiments. These protocols exhibit similar behavior to that seen in the recent traver
Externí odkaz:
http://arxiv.org/abs/1911.06314
Autor:
Faist, Philippe, Nezami, Sepehr, Albert, Victor V., Salton, Grant, Pastawski, Fernando, Hayden, Patrick, Preskill, John
Publikováno v:
Phys. Rev. X 10, 041018 (2020)
Quantum error correction and symmetry arise in many areas of physics, including many-body systems, metrology in the presence of noise, fault-tolerant computation, and holographic quantum gravity. Here we study the compatibility of these two important
Externí odkaz:
http://arxiv.org/abs/1902.07714
Publikováno v:
Communications in Mathematical Physics 385 (2021), 1325-1393
Schur-Weyl duality is a ubiquitous tool in quantum information. At its heart is the statement that the space of operators that commute with the tensor powers of all unitaries is spanned by the permutations of the tensor factors. In this work, we desc
Externí odkaz:
http://arxiv.org/abs/1712.08628
Publikováno v:
PRX Quantum 2, 010326 (2021)
The existence of quantum error correcting codes is one of the most counterintuitive and potentially technologically important discoveries of quantum information theory. However, standard error correction refers to abstract quantum information, i.e.,
Externí odkaz:
http://arxiv.org/abs/1709.04471
Autor:
Nezami, Sepehr, Walter, Michael
Publikováno v:
Phys. Rev. Lett. 125, 241602 (2020)
Despite the fundamental importance of quantum entanglement in many-body systems, our understanding is mostly limited to bipartite situations. Indeed, even defining appropriate notions of multipartite entanglement is a significant challenge for genera
Externí odkaz:
http://arxiv.org/abs/1608.02595
Publikováno v:
New J. Phys. 18 (2016) 083043
The theory of relativity requires that no information travel faster than light, whereas the unitarity of quantum mechanics ensures that quantum information cannot be cloned. These conditions provide the basic constraints that appear in information re
Externí odkaz:
http://arxiv.org/abs/1601.02544