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Showing 2004 · quant-phShow all
3 papers · 2 filters
quant-ph2004★ 116 cited
Quantum Phase Transition of Ground-state Entanglement in a Heisenberg Spin Chain Simulated in an NMR Quantum Computer
Xinhua Peng, Jiangfeng Du, Dieter Suter
Using an NMR quantum computer, we experimentally simulate the quantum phase transition of a Heisenberg spin chain. The Hamiltonian is generated by a multiple pulse sequence, the nu…
quant-ph2004★ 15 cited
Cliffordization, Spin and Fermionic Star Products
Allen C. Hirshfeld, Peter Henselder, Thomas Spernat
Deformation quantization is a powerful tool for quantizing theories with bosonic and fermionic degrees of freedom. The star products involved generate the mathematical structures w…
quant-ph2004★ 44 cited
Quantum Branching Programs and Space-Bounded Nonuniform Quantum Complexity
M. Sauerhoff, D. Sieling
In this paper, the space complexity of nonuniform quantum computations is investigated. The model chosen for this are quantum branching programs, which provide a graphic descriptio…