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Experimental measurement of the quantum geometric tensor using coupled qubits in diamond
Min Yu, Pengcheng Yang, Musang Gong +9
Geometry and topology are fundamental concepts, which underlie a wide range of fascinating physical phenomena such as topological states of matter and topological defects. In quant…
Tilted and type-III Dirac cones emerging from flat bands in photonic orbital graphene
M. Milićević, G. Montambaux, T. Ozawa +6
The extraordinary electronic properties of Dirac materials, the two-dimensional partners of Weyl semimetals, arise from the linear crossings in their band structure. When the dispe…
Measuring quantized circular dichroism in ultracold topological matter
Luca Asteria, Duc Thanh Tran, Tomoki Ozawa +6
The topology of two-dimensional materials traditionally manifests itself through the quantization of the Hall conductance, which is revealed in transport measurements. Recently, it…
Extracting the quantum metric tensor through periodic driving
Tomoki Ozawa, Nathan Goldman
We propose a generic protocol to experimentally measure the quantum metric tensor, a fundamental geometric property of quantum states. Our method is based on the observation that t…
Topological Photonics
Tomoki Ozawa, Hannah M. Price, Alberto Amo +8
Topological photonics is a rapidly emerging field of research in which geometrical and topological ideas are exploited to design and control the behavior of light. Drawing inspirat…