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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Does qubit connectivity impact quantum circuit complexity
量子比特连接 量子电路 复杂性
2023/4/13
Some physical implementation schemes of quantum computing -- such as those based on superconducting qubits, quantum dots, and cold atoms -- can apply two-qubit gates only on certain pairs of qubits. O...
Circuit Quantum Electrodynamics with a Superconducting Quantum Point Contact
Circuit Quantum Electrodynamics Superconducting Quantum Point Contact
2012/2/27
We consider a superconducting quantum point contact in a circuit quantum electrodynamics setup. We study three different configurations, attainable with current technology, where a quantum point conta...
Researchers in the US are the first to make tiny electromechanical logic circuits that operate at temperatures as high as 500 °C. The circuits contain two switches made from silicon carbide and operat...
Entropy of Chaotic Oscillations of Currents in the Chua Circuit and its HMM Analysis
Chaotic Oscillations Chua Circuit Hidden Markov Model
2010/4/2
We study entropy of chaotic oscillation of electric currents in the Chua circuit controlled by triggering a pulse that brings the orbit that goes onto an unstable branch back to a stable branch. A num...
UW-Madison physicists build basic quantum computing circuit
UW-Madison physicists basic quantum computing circuit
2010/3/4
Exerting delicate control over a pair of atoms within a mere seven-millionths-of-a-second window of opportunity, physicists at the University of Wisconsin-Madison created an atomic circuit that may he...
Transport Properties of Strongly Correlated Electrons in Quantum Dots Using a Simple Circuit Model
Kondo effect Nanoscopic systems Correlated electrons
2010/8/26
Numerical calculations are shown to reproduce the main results of recent experiments involving nonlocal spin control in nanostructures (N. J. Craig et al., Science 304, 565 (2004)). In particular, the...
We used a set of properties of the interactions among the spinal neurons in order to develop a computer model for a spinal reflex circuit. The model equations take into account the synaptic characteri...
Evolution of Chaos in the Matsumoto-Chua Circuit: Symbolic Dynamics Approach
Chaos the Matsumoto-Chua Circuit Symbolic Dynamics Approach
2010/10/13
We use symbolic dynamics to follow the evolution of the Matsumoto-Chua circuit in the chaotic regime. We consider the evolution of the whole population of unstable periodic orbits and of the associate...