Entangled phase of simultaneous fermion and exciton condensations realized
Entangled phase of simultaneous fermion and exciton condensations realized
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DOI：
10.1103/physrevb.105.l121105
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发表时间：
2022-03
影响因子：
3.7
通讯作者：
LeeAnn M. Sager;D. Mazziotti
中科院分区：
文献类型：
--
作者：
LeeAnn M. Sager;D. Mazziotti
费米子-激子凝聚（FECs）-计算和理论预测的状态，同时表现出超导态和激子凝聚的特征-是一种新的量子态，其性质可能涉及超导性和无耗散能量流的杂交。在这里，我们利用先前的研究超导态和激子凝聚体的量子器件，以确定一个可调的量子态制备纠缠的波函数的个人凝聚态。利用这种状态准备，我们在量子计算机上准备了各种FEC状态-在当前有噪声的中等规模量子设备上实现强相关的FEC状态-并通过测量后分析验证双凝聚体的存在。先前预测的量子器件上的凝聚态及其波函数的形式的确认激发了对FEC的性质，应用和稳定性的进一步理论和实验探索。
Fermion-exciton condensates (FECs) -- computationally and theoretically predicted states that simultaneously exhibit the character of superconducting states and exciton condensates -- are novel quantum states whose properties may involve a hybridization of superconductivity and the dissipationless flow of energy. Here, we exploit prior investigations of superconducting states and exciton condensates on quantum devices to identify a tuneable quantum state preparation entangling the wave functions of the individual condensate states. Utilizing this state preparation, we prepare a variety of FEC states on quantum computers -- realizing strongly correlated FEC states on current, noisy intermediate-scale quantum devices -- and verify the presence of the dual condensate via postmeasurement analysis. This confirmation of the previously predicted condensate state on quantum devices as well as the form of its wave function motivates further theoretical and experimental exploration of the properties, applications, and stability of FECs.