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相关论文: On Self-Dual Quantum Codes, Graphs, and Boolean Fu…

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Linear network coding transmits data through networks by letting the intermediate nodes combine the messages they receive and forward the combinations towards their destinations. The solvability problem asks whether the demands of all the…

信息论 · 计算机科学 2014-12-18 Maximilien Gadouleau , Adrien Richard , Eric Fanchon

We first present a useful characterization of additive (stabilizer) quantum error-correcting codes. Then we present several examples of We first present a useful characterization of additive (stabilizer) quantum error--correcting codes.…

量子物理 · 物理学 2007-05-23 Vwani P. Roychowdhury , Farrokh Vatan

In $2006$, Danielsen and Parker \cite{DP} proved that every self-dual additive code over $GF(4)$ is equivalent to a graph code. So, graph is an important tool for searching (proposed) optimum codes. In this paper, we introduce a new method…

组合数学 · 数学 2014-04-01 Ruihu Li , Xueliang Li , Yaping Mao , Meiqin Wei

We give new quantum algorithms for evaluating composed functions whose inputs may be shared between bottom-level gates. Let $f$ be an $m$-bit Boolean function and consider an $n$-bit function $F$ obtained by applying $f$ to conjunctions of…

量子物理 · 物理学 2021-09-22 Mark Bun , Robin Kothari , Justin Thaler

Graph states are multi-particle entangled states that correspond to mathematical graphs, where the vertices of the graph take the role of quantum spin systems and edges represent Ising interactions. They are many-body spin states of…

量子物理 · 物理学 2007-05-23 M. Hein , J. Eisert , H. J. Briegel

We investigate a novel class of quantum error correcting codes to correct errors on both qubits and higher-state quantum systems represented as qudits. These codes arise from an original graph-theoretic representation of sets of quantum…

量子物理 · 物理学 2022-04-13 Robert Vandermolen , Duncan Wright

In this paper, based on the relationship between logic functions and quantum error correcting codes(QECCs), we unify the construction of QECCs via graphs, projectors and logic functions. A construction of QECCs over a prime field GF(p) is…

量子物理 · 物理学 2008-01-06 Yajie Xu , Zhi Ma , Chunyuan Zhang , Xin Lü

PhD thesis investigating homological quantum codes derived from curved and higher dimensional geometries. In the first part we will consider closed surfaces with constant negative curvature. We show how such surfaces can be constructed and…

量子物理 · 物理学 2018-02-06 Nikolas P. Breuckmann

Artificial molecular states of double quantum dots defined in bilayer graphene are studied with the atomistic tight-binding and its low-energy continuum approximation. We indicate that the extended electron wave functions have opposite…

介观与纳米尺度物理 · 物理学 2017-08-02 D. P. Żebrowski , F. M. Peeters , B. Szafran

Graphs are closely related to quantum error-correcting codes: every stabilizer code is locally equivalent to a graph code, and every codeword stabilized code can be described by a graph and a classical code. For the construction of good…

量子物理 · 物理学 2011-03-31 Salman Beigi , Isaac Chuang , Markus Grassl , Peter Shor , Bei Zeng

In the present paper, we show that if the dimension of an arbitrary algebraic geometry code over a finite field of even characters is slightly less than half of its length, then it is equivalent to an Euclidean self-orthogonal code.…

信息论 · 计算机科学 2013-08-19 Lingfei Jin , Chaoping Xing

In this paper, we investigate the optimal nonadditive quantum error-detecting codes with distance two. The the numerical simulation shows that, with n being can be 5, 6, 7, 8, 10 and 12, such the n-qubit quantum error-detecting codes with…

量子物理 · 物理学 2009-01-13 Wen-Tai Yen , Li-Yi Hsu

We introduce a novel quantum algorithm for determining graph connectedness using a constant number of measurements. The algorithm can be extended to find connected components with a linear number of measurements. It relies on non-unitary…

量子物理 · 物理学 2024-12-05 Maximilian Balthasar Mansky , Chonfai Kam , Claudia Linnhoff-Popien

We present a number of results related to quantum algorithms with small error probability and quantum algorithms that are zero-error. First, we give a tight analysis of the trade-offs between the number of queries of quantum search…

计算复杂性 · 计算机科学 2007-05-23 H. Buhrman , R. Cleve , R. de Wolf , Ch. Zalka

There is a rich connection between classical error-correcting codes, Euclidean lattices, and chiral conformal field theories. Here we show that quantum error-correcting codes, those of the stabilizer type, are related to Lorentzian lattices…

高能物理 - 理论 · 物理学 2021-06-24 Anatoly Dymarsky , Alfred Shapere

We determine the optimum topology of quasi-one dimensional nonlinear optical structures using generalized quantum graph models. Quantum graphs are relational graphs endowed with a metric and a multiparticle Hamiltonian acting on the edges,…

量子物理 · 物理学 2015-06-19 Rick Lytel , Shoresh Shafei , Mark G. Kuzyk

A new construction is proposed for low density parity check (LDPC) codes using quadratic permutation polynomials over finite integer rings. The associated graphs for the new codes have both algebraic and pseudo-random nature, and the new…

信息论 · 计算机科学 2007-07-13 Oscar Y. Takeshita

We present a quantum algorithm for approximating maximum independent sets of a graph based on quantum non-Abelian adiabatic mixing in the sub-Hilbert space of degenerate ground states, which generates quantum annealing in a secondary…

量子物理 · 物理学 2021-03-05 Hongye Yu , Frank Wilczek , Biao Wu

Deciding if a given family of quantum states is topologically ordered is an important but nontrivial problem in condensed matter physics and quantum information theory. We derive necessary and sufficient conditions for a family of graph…

量子物理 · 物理学 2022-09-09 Pengcheng Liao , Barry C. Sanders , David L. Feder

In this work, we propose novel families of positional encodings tailored to graph neural networks obtained with quantum computers. These encodings leverage the long-range correlations inherent in quantum systems that arise from mapping the…