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An essential ingredient in many examples of the conflict between quantum theory and noncontextual hidden variables (e.g., the proof of the Kochen-Specker theorem and Hardy's proof of Bell's theorem) is a set of atomic propositions about the…

Quantum Physics · Physics 2018-07-11 Adán Cabello , José R. Portillo , Alberto Solís , Karl Svozil

Existing dialog datasets contain a sequence of utterances and responses without any explicit background knowledge associated with them. This has resulted in the development of models which treat conversation as a sequence-to-sequence…

Computation and Language · Computer Science 2018-09-24 Nikita Moghe , Siddhartha Arora , Suman Banerjee , Mitesh M. Khapra

The Bell-Kochen-Specker conditions (BKS) for a deterministic noncontextual hidden-variable model are wonderfully simple to state, deal with just one-dimensional projectors on a Hilbert space H and make no reference to a probabilistic phase…

Quantum Physics · Physics 2009-11-13 James D. Malley

The construction of optimal line packings in real or complex Euclidean spaces has shown to be a tantalizingly difficult task, because it includes the problem of finding maximal sets of equiangular lines. In the regime where equiangular…

Functional Analysis · Mathematics 2016-07-18 Bernhard G. Bodmann , John I. Haas

We introduce a contextual quantum system comprising mutually complementary observables organized into two or more collections of pseudocontexts with the same probability sums of outcomes. These pseudocontexts constitute non-orthogonal bases…

Quantum Physics · Physics 2024-04-05 Mirko Navara , Karl Svozil

Physical entities are ultimately (re)constructed from elementary yes/no events, in particular clicks in detectors or measurement devices recording quanta. Recently, the interpretation of certain such clicks has given rise to unfounded…

Quantum Physics · Physics 2012-03-02 Karl Svozil

We introduce a new framework for contextuality based on simplicial sets, combinatorial models of topological spaces that play a prominent role in modern homotopy theory. Our approach extends measurement scenarios to consist of spaces…

Quantum Physics · Physics 2023-05-24 Cihan Okay , Aziz Kharoof , Selman Ipek

The discovery of quantum key distribution by Bennett and Brassard (BB84) bases on the fundamental quantum feature: incompatibility of measurements of quantum non-commuting observables. In 1991 Ekert showed that cryptographic key can be…

Using a quantum like algebraic formulation we give proof of Kochen-Specker theorem. We introduce new criteria in order to account for the contextual nature of measurements in quantum mechanics.

General Physics · Physics 2007-12-19 Elio Conte

Mutually unbiased bases correspond to highly useful pairs of measurements in quantum information theory. In the smallest composite dimension, six, it is known that between three and seven mutually unbiased bases exist, with a decades-old…

Quantum Physics · Physics 2022-08-17 Maria Prat Colomer , Luke Mortimer , Irénée Frérot , Máté Farkas , Antonio Acín

We present Deep Speaker, a neural speaker embedding system that maps utterances to a hypersphere where speaker similarity is measured by cosine similarity. The embeddings generated by Deep Speaker can be used for many tasks, including…

Computation and Language · Computer Science 2017-05-08 Chao Li , Xiaokong Ma , Bing Jiang , Xiangang Li , Xuewei Zhang , Xiao Liu , Ying Cao , Ajay Kannan , Zhenyao Zhu

It has been recently shown that state-independent contextuality (SIC) is a fundamental resource linked with a type of nonlocality which cannot be improved by nonsignaling resources. Therefore, it is of fundamental importance to identify the…

Quantum Physics · Physics 2012-01-05 Adan Cabello

We study three finite-dimensional quotient vector spaces constructed from the linear span of the set of characteristic functions of permutohedral cones by imposing two kinds of constraints: (1) neglect characteristic functions of higher…

Combinatorics · Mathematics 2018-02-02 Nick Early

In the paper it is argued that the Kochen-Specker theorem necessitates a conclusion that for a quantum system it is possible to find a set of projection operators which is not truth-value bivalent; that is, a bivalent truth-value assignment…

Quantum Physics · Physics 2017-10-25 Arkady Bolotin

Several types of nonclassical structures within the $N$-qubit Pauli group that can be seen as fundamental resources for quantum information processing are presented and discussed. Identity Products (IDs), structures fundamentally related to…

Quantum Physics · Physics 2015-06-17 Mordecai Waegell

Common grounding is the process of creating, repairing and updating mutual understandings, which is a critical aspect of sophisticated human communication. However, traditional dialogue systems have limited capability of establishing common…

Computation and Language · Computer Science 2019-07-09 Takuma Udagawa , Akiko Aizawa

In this reply, we point out that the claim by De Zela[2] is unjustified because the setup he discusses is \emph{not} equivalent to the setup analysed in our paper[1]. Hence his subsequent argument claiming the reproducibility of our…

Quantum Physics · Physics 2015-05-18 Alok Kumar Pan , Dipankar Home

Several of the latest GAN-based vocoders show remarkable achievements, outperforming autoregressive and flow-based competitors in both qualitative and quantitative measures while synthesizing orders of magnitude faster. In this work, we…

Sound · Computer Science 2021-08-24 Jaeseong You , Dalhyun Kim , Gyuhyeon Nam , Geumbyeol Hwang , Gyeongsu Chae

In a previous paper with Adam Brandenburger, we used sheaf theory to analyze the structure of non-locality and contextuality. Moreover, on the basis of this formulation, we showed that the phenomena of non-locality and contextuality can be…

Quantum Physics · Physics 2012-10-03 Samson Abramsky , Shane Mansfield , Rui Soares Barbosa

Disentangling uncorrelated information in speech utterances is a crucial research topic within speech community. Different speech-related tasks focus on extracting distinct speech representations while minimizing the affects of other…

Computation and Language · Computer Science 2023-09-26 Siqi Zheng , Luyao Cheng , Yafeng Chen , Hui Wang , Qian Chen