Search Results - "Sikora, Jamie"

Jordan products of quantum channels and their compatibility by Girard, Mark, Plávala, Martin, Sikora, Jamie

“…Given two quantum channels, we examine the task of determining whether they are compatible—meaning that one can perform both channels simultaneously but, in…”
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Optimal bounds for parity-oblivious random access codes by Chailloux, André, Kerenidis, Iordanis, Kundu, Srijita, Sikora, Jamie

“…Random access coding is an information task that has been extensively studied and found many applications in quantum information. In this scenario, Alice…”
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Simple, Near-Optimal Quantum Protocols for Die-Rolling by Sikora, Jamie

“…Die-rolling is the cryptographic task where two mistrustful, remote parties wish to generate a random D-sided die-roll over a communication channel. Optimal…”
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Device-independent dimension test in a multiparty Bell experiment by Wei, Zhaohui, Sikora, Jamie

“…A device-independent dimension test for a Bell experiment aims to estimate the underlying Hilbert space dimension that is required to produce given measurement…”
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Impossibility of coin flipping in generalized probabilistic theories via discretizations of semi-infinite programs by Sikora, Jamie, Selby, John H.

“…Coin flipping is a fundamental cryptographic task where spatially separated Alice and Bob wish to generate a fair coin flip over a communication channel. It is…”
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How to make unforgeable money in generalised probabilistic theories by Selby, John H., Sikora, Jamie

“…We discuss the possibility of creating money that is physically impossible to counterfeit. Of course, "physically impossible" is dependent on the theory that…”
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A device-independent protocol for XOR oblivious transfer by Kundu, Srijita, Sikora, Jamie, Tan, Ernest Y.-Z.

“…Oblivious transfer is a cryptographic primitive where Alice has two bits and Bob wishes to learn some function of them. Ideally, Alice should not learn Bob's…”
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Impossibility of adversarial self-testing and secure sampling by Bansal, Akshay, Arora, Atul Singh, Van Himbeeck, Thomas, Sikora, Jamie

“…Self-testing is the task where spatially separated Alice and Bob cooperate to deduce the inner workings of untrusted quantum devices by interacting with them…”
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Fidelity of quantum strategies with applications to cryptography by Gutoski, Gus, Rosmanis, Ansis, Sikora, Jamie

“…We introduce a definition of the fidelity function for multi-round quantum strategies, which we call the strategy fidelity , that is a generalization of the…”
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Post-quantum steering is a stronger-than-quantum resource for information processing by Cavalcanti, Paulo J., Selby, John H., Sikora, Jamie, Galley, Thomas D., Sainz, Ana Belén

“…We present the first instance where post-quantum steering is a stronger-than-quantum resource for information processing – remote state preparation. In…”
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Completely positive completely positive maps (and a resource theory for non-negativity of quantum amplitudes) by Johnston, Nathaniel, Sikora, Jamie

“…In this work we examine quantum states which have non-negative amplitudes (in a fixed basis) and the channels which preserve them. These states include the…”
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Linear conic formulations for two-party correlations and values of nonlocal games by Sikora, Jamie, Varvitsiotis, Antonios

“…In this work we study the sets of two-party correlations generated from a Bell scenario involving two spatially separated systems with respect to various…”
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Minimum Dimension of a Hilbert Space Needed to Generate a Quantum Correlation by Sikora, Jamie, Varvitsiotis, Antonios, Wei, Zhaohui

“…Consider a two-party correlation that can be generated by performing local measurements on a bipartite quantum system. A question of fundamental importance is…”
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Completely positive semidefinite rank by Prakash, Anupam, Sikora, Jamie, Varvitsiotis, Antonios, Wei, Zhaohui

“…An n × n matrix X is called completely positive semidefinite (cpsd) if there exist d × d Hermitian positive semidefinite matrices { P i } i = 1 n (for some d ≥…”
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A search for quantum coin-flipping protocols using optimization techniques by Nayak, Ashwin, Sikora, Jamie, Tunçel, Levent

“…Coin-flipping is a cryptographic task in which two physically separated, mistrustful parties wish to generate a fair coin-flip by communicating with each…”
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Fundamental Limitations to Local Energy Extraction in Quantum Systems by Alhambra, Álvaro M., Styliaris, Georgios, Rodríguez-Briones, Nayeli A., Sikora, Jamie, Martín-Martínez, Eduardo

“…We examine when it is possible to locally extract energy from a bipartite quantum system in the presence of strong coupling and entanglement, a task which is…”
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Quantum generalizations of the polynomial hierarchy with applications to QMA(2) by Gharibian, Sevag, Santha, Miklos, Sikora, Jamie, Sundaram, Aarthi, Yirka, Justin

“…The polynomial-time hierarchy (PH) has proven to be a powerful tool for providing separations in computational complexity theory (modulo standard conjectures…”
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Breaking barriers in two-party quantum cryptography via stochastic semidefinite programming by Bansal, Akshay, Sikora, Jamie

“…In the last two decades, there has been much effort in finding secure protocols for two-party cryptographic tasks. It has since been discovered that even with…”
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Completely positive completely positive maps (and a resource theory for non-negativity of quantum amplitudes) by Johnston, Nathaniel, Sikora, Jamie

“…Linear Algebra and its Applications, 653:395-429, 2022 In this work we examine quantum states which have non-negative amplitudes (in a fixed basis) and the…”
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A note on the inner products of pure states and their antidistinguishability by Russo, Vincent, Sikora, Jamie

“…A set of d quantum states is said to be antidistinguishable if there exists a d-outcome POVM that can perfectly identify which state was not measured. A…”
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