16 citations · 20 across the 11 of their papers we have counts for
13 papers
Classical Communication Helps Single-Shot Quantum Compression
Omri Farber, Gilad Gour
Free classical communication can yield an unbounded single-shot saving in quantum compression, even though it leaves the asymptotic rate of an i.i.d. source unchanged. At every fix…
Failure of the Asymptotic Equipartition Property for Quantum Channels
Gilad Gour
We establish two results on the asymptotic equipartition property (AEP) for quantum channels. First, the AEP formulated using smoothing over completely positive trace-preserving ma…
Quantum Noncommutativity Uniquely Determines Relative Entropy
Gilad Gour
Quantum relative entropy is a core concept in physics, governing the limits of communication, thermodynamic irreversibility and quantum resource conversion. However, the requiremen…
Optimal Trace Inequalities for Single-Shot Quantum Information
Gilad Gour
Single-shot quantum information theory is governed not only by entropy exponents, but also by the finite-resource constants that multiply them. These constants directly affect the…
Optimal Universal Bounds for Quantum Divergences
Gilad Gour
We identify a universal structural principle underlying the smoothing of classical divergences: the optimizer of the smoothing problem is a clipped probability vector, independentl…
Instability as a Quantum Resource
Goni Yoeli, Gilad Gour
We consolidate coherence, athermality, and nonuniformity as sub-resources within an underlying quantum resource theory: instability. We formulate instability axiomatically as the t…
Quantum Reverse Shannon Theorem Simplified
Gilad Gour
We revisit the quantum reverse Shannon theorem, a central result in quantum information theory that characterizes the resources needed to simulate quantum channels when entanglemen…
Fundamental limits for thermodynamic control with quantum feedback
Kaiyuan Ji, Gilad Gour, Mark M. Wilde
The study of feedback control inspired by Maxwell's demon has yielded fundamental insights into the relationship between thermodynamics and information. However, its fully quantum…
Induced Quantum Divergence: A New Lens on Communication and Source Coding
Gilad Gour
This paper introduces the induced divergence, a new quantum divergence measure that replaces the hypothesis testing divergence in position-based decoding, simplifying the analysis…
Convex Split Lemma without Inequalities
Gilad Gour
We introduce a refinement to the convex split lemma by replacing the max mutual information with the collision mutual information, transforming the inequality into an equality. Thi…
Inevitable Negativity: Additivity Commands Negative Quantum Channel Entropy
Gilad Gour, Doyeong Kim, Takla Nateeboon +2
Quantum channels represent a broad spectrum of operations crucial to quantum information theory, encompassing everything from the transmission of quantum information to the manipul…
Resources of the Quantum World
Gilad Gour
This book delves into the burgeoning field of quantum resource theories, a novel and vibrant area of research within quantum information science that seeks to unify diverse quantum…
Towards the ultimate limits of quantum channel discrimination and quantum communication
Kun Fang, Gilad Gour, Xin Wang
Distinguishability is fundamental to information theory and extends naturally to quantum systems. While quantum state discrimination is well understood, quantum channel discriminat…