Extended Data Fig. 4: Probing the single-particle particle-hole symmetric spectrum.
From: Particle–hole symmetry protects spin-valley blockade in graphene quantum dots
a, Energy dispersion of single-particle states in the first orbital for electrons and holes as a function of in-plane (B∥, left) and out-of-plane (B⊥, right) magnetic fields. States and transitions are labelled as in Fig. 3a. b, Current through DQD #2 as a function of the detuning energy \(\widetilde{\varepsilon }\) (see yellow dashed line in Extended Data Fig. 3e) and B⊥ at VSD = 1.5 mV. The white dashed line marks the onset of the bias transport window. c, Current through the device as a function of \(\widetilde{\varepsilon }\) and B∥ at VSD = 1.5 mV. d,e, Data acquired in the blockade regime (VSD = −1.5 mV). The current has been measured as a function of B⊥ and B∥, respectively. Data have been symmetrized around B = 0.
