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pro vyhledávání: '"Emanuele, G"'
Gate-based quantum computers are an innovative tool for experimentally studying the core principles of quantum mechanics. This work presents the first observation of quantum anomalous heat flow between two qubits and investigates the role of mid-circ
Externí odkaz:
http://arxiv.org/abs/2410.22900
Recent theoretical studies have predicted the existence of caustics in many-body quantum dynamics, where they manifest as extended regions of enhanced probability density that obey temporal and spatial scaling relations. Focusing on the transverse-fi
Externí odkaz:
http://arxiv.org/abs/2410.06803
Circuit optimization is a fundamental task for practical applications of near-term quantum computers. In this work we address this challenge through the powerful lenses of tensor network theory. Our approach involves the full characterization of the
Externí odkaz:
http://arxiv.org/abs/2407.18305
Processing-using-DRAM (PUD) architectures impose a restrictive data layout and alignment for their operands, where source and destination operands (i) must reside in the same DRAM subarray (i.e., a group of DRAM rows sharing the same row buffer and r
Externí odkaz:
http://arxiv.org/abs/2403.04539
In spite of remarkable recent advances, quantum computers have not yet found any useful applications. A promising direction for such utility is offered by the simulation of the dynamics of many-body quantum systems, which cannot be efficiently comput
Externí odkaz:
http://arxiv.org/abs/2308.01339
Publikováno v:
Phys. Rev. A 108, 022426 (2023)
An entangled state is said to be $m$-uniform if the reduced density matrix of any $m$ qubits is maximally mixed. This is intimately linked to pure quantum error correction codes (QECCs), which allow not only to correct errors, but also to identify th
Externí odkaz:
http://arxiv.org/abs/2303.15508
Publikováno v:
Annals of Physics 454, 169297 (2023)
Time-periodic (Floquet) driving is a powerful way to control the dynamics of complex systems, which can be used to induce a plethora of new physical phenomena. However, when applied to many-body systems, Floquet driving can also cause heating, and le
Externí odkaz:
http://arxiv.org/abs/2212.00041
Publikováno v:
npj Quantum Information, Vol 10, Iss 1, Pp 1-8 (2024)
Abstract Quantum algorithms and simulations often require the preparation of complex states through sequences of 2-qubit gates. For a generic quantum state, the number of required gates grows exponentially with the number of qubits, becoming unfeasib
Externí odkaz:
https://doaj.org/article/e9d89f3e833341edb9b61da9319a9ae1
Publikováno v:
Phys. Rev. B 107, 125127 (2023)
Adiabatic quantum algorithms solve computational problems by slowly evolving a trivial state to the desired solution. On an ideal quantum computer, the solution quality improves monotonically with increasing circuit depth. By contrast, increasing the
Externí odkaz:
http://arxiv.org/abs/2209.11245
Publikováno v:
npj Quantum Inf 10, 65 (2024)
A common requirement of quantum simulations and algorithms is the preparation of complex states through sequences of 2-qubit gates. For a generic quantum state, the number of gates grows exponentially with the number of qubits, becoming unfeasible on
Externí odkaz:
http://arxiv.org/abs/2207.00028