Results 21 to 30 of about 225,791 (326)
Proceedings of the 54th Annual ACM SIGACT Symposium on Theory of Computing, 2022 66 pages. Updated the erroneous claim from v1 about the complexity of information-theoretic QRE as matching the classical case.
Brakerski, Zvika, Yuen, Henry
openaire +2 more sources
Triunitary quantum circuits [PDF]
Physical Review Research, 2021 We introduce a novel class of quantum circuits that are unitary along three distinct "arrows of time". These dynamics share some of the analytical tractability of "dual-unitary" circuits, while exhibiting distinctive and richer phenomenology. We find that two-point correlations in these dynamics are strictly confined to three directions in $(1+1 ...
Cheryne Jonay +2 more
openaire +4 more sources
Categorical quantum circuits [PDF]
Journal of Physics A: Mathematical and Theoretical, 2011 25 pages, 20 figures.
Bergholm, V, Biamonte, J
openaire +4 more sources
Heat Bath in a Quantum Circuit. [PDF]
Entropy (Basel)We discuss the concept and realization of a heat bath in solid state quantum systems. We demonstrate that, unlike a true resistor, a finite one-dimensional Josephson junction array or analogously a transmission line with non-vanishing frequency spacing, commonly considered as a reservoir of a quantum circuit, does not strictly qualify as a Caldeira ...
Pekola JP, Karimi B.
europepmc +6 more sources
Quantum circuit cutting with maximum-likelihood tomography
npj Quantum Information, 2021 We introduce maximum-likelihood fragment tomography (MLFT) as an improved circuit cutting technique for running clustered quantum circuits on quantum devices with a limited number of qubits.
Michael A. Perlin +3 more
doaj +1 more source
Privacy and correctness trade-offs for information-theoretically secure quantum homomorphic encryption [PDF]
Quantum, 2023 Quantum homomorphic encryption, which allows computation by a server directly on encrypted data, is a fundamental primitive out of which more complex quantum cryptography protocols can be built.
Yanglin Hu +2 more
doaj +1 more source
Annual Review of Condensed Matter Physics, 2023 Quantum circuits—built from local unitary gates and local measurements—are a new playground for quantum many-body physics and a tractable setting to explore universal collective phenomena far from equilibrium. These models have shed light on longstanding questions about thermalization and chaos, and on the underlying universal dynamics of quantum ...
Fisher, Matthew P.A. +3 more
openaire +2 more sources
Synthesis of quantum logic circuits [PDF]
Proceedings of the ASP-DAC 2005. Asia and South Pacific Design Automation Conference, 2005., 2005 18 pages; v5 fixes minor bugs; v4 is a complete rewrite of v3, with 6x more content, a theory of quantum multiplexors and Quantum Shannon Decomposition.
Vivek Shende +2 more
+9 more sources
Quantum circuit learning [PDF]
Physical Review A, 2018 We propose a classical-quantum hybrid algorithm for machine learning on near-term quantum processors, which we call quantum circuit learning. A quantum circuit driven by our framework learns a given task by tuning parameters implemented on it. The iterative optimization of the parameters allows us to circumvent the high-depth circuit.
Keisuke Fujii +5 more
openaire +4 more sources
PRX Quantum, 2023 28 pages, 23 figures + 6 pages, 5 figures in 3 appendices. v2: Added two appendices, revised and added references. v3: Improved presentation based on referee comments, close to published version.
Grace M. Sommers +2 more
openaire +3 more sources