485 citations · 1.2k across the 13 of their papers we have counts for
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Classification of Small Triorthogonal Codes
Sepehr Nezami, Jeongwan Haah
Triorthogonal codes are a class of quantum error correcting codes used in magic state distillation protocols. We classify all triorthogonal codes with , where is th…
Permanent of random matrices from representation theory: moments, numerics, concentration, and comments on hardness of boson-sampling
Sepehr Nezami
Computing the distribution of permanents of random matrices has been an outstanding open problem for several decades. In quantum computing, "anti-concentration" of this distributio…
Quantum Gravity in the Lab: Teleportation by Size and Traversable Wormholes, Part II
Sepehr Nezami, Henry W. Lin, Adam R. Brown +6
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 ela…
Matchgate benchmarking: Scalable benchmarking of a continuous family of many-qubit gates
Jonas Helsen, Sepehr Nezami, Matthew Reagor +1
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 me…
Quantum Gravity in the Lab: Teleportation by Size and Traversable Wormholes
Adam R. Brown, Hrant Gharibyan, Stefan Leichenauer +6
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. Thes…
Continuous symmetries and approximate quantum error correction
Philippe Faist, Sepehr Nezami, Victor V. Albert +4
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 q…
Schur-Weyl Duality for the Clifford Group with Applications: Property Testing, a Robust Hudson Theorem, and de Finetti Representations
David Gross, Sepehr Nezami, Michael Walter
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 sp…
Error Correction of Quantum Reference Frame Information
Patrick Hayden, Sepehr Nezami, Sandu Popescu +1
The existence of quantum error correcting codes is one of the most counterintuitive and potentially technologically important discoveries of quantum information theory. However, st…
Multipartite Entanglement in Stabilizer Tensor Networks
Sepehr Nezami, Michael Walter
Despite the fundamental importance of quantum entanglement in many-body systems, our understanding is mostly limited to bipartite situations. Indeed, even defining appropriate noti…
Spacetime replication of continuous variable quantum information
Patrick Hayden, Sepehr Nezami, Grant Salton +1
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…