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arXiv 1602.05600quant-phcond-mat.mes-hallcond-mat.supr-con
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用双量子比特链模拟一维费米-哈伯德模型

Emulating the one-dimensional Fermi-Hubbard model by a double chain of qubits

Jan-Michael Reiner, Michael Marthaler, Jochen Braumüller, Martin Weides, Gerd Schön

摘要:

Jordan-Wigner变换将一维自旋1/2系统映射到没有自旋自由度的费米子模型上。一个双量子比特链,沿着链和链之间分别具有相邻量子比特的XX和ZZ耦合,可以映射到自旋全一维费米-哈伯德模型上。因此,量子比特系统可以用来模拟这个模型的量子特性。我们分析这种模拟量子模拟器的物理实现,包括基于transmon量子位的模拟量子模拟器,其中ZZ相互作用是由于电感耦合而产生的,XX相互作用是由于电容相互作用而产生的。我们提出的协议,以获得信心的模拟结果,通过测量本地运营商。

英文摘要:

The Jordan-Wigner transformation maps a one-dimensional spin-1/2 system onto a fermionic model without spin degree of freedom. A double chain of quantum bits with XX and ZZ couplings of neighboring qubits along and between the chains, respectively, can be mapped on a spin-full 1D Fermi-Hubbard model. The qubit system can thus be used to emulate the quantum properties of this model. We analyze physical implementations of such analog quantum simulators, including one based on transmon qubits, where the ZZ interaction arises due to an inductive coupling and the XX interaction due to a capacitive interaction. We propose protocols to gain confidence in the results of the simulation through measurements of local operators.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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