“…Given the flexibility to tune the strength of electron−photon coupling in optical cavities by changing the quantization volume, 27 we focus on the moderate coupling regime. For stronger couplings, correlated methods resumming infinite number of diagrams, such as the GW ̃method, 28 or even more expensive, numerically exact quantum Monte Carlo methods 29,30 The BDT molecule has been extensively studied since the conductivity measurement of Reed et al 31 using a mechanically controlled break-junction. Current−voltage, differential conductance, and inelastic electron tunneling spectroscopy measurements show that BDT is one of the very rare organic molecules able to span low to high transmission ranges, making it highly useful for molecular electronics applications and as a testbed for quantum transport.…”