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We focus on a metallic quantum dot coupled to a reservoir of electronsthrough a single-mode quantum point contact and capacitively connected to aback-gate, by taking into account that the gate voltage can exhibit noise; Thiswill occur when connecting the gate lead to an external transmission line witha finite Ohmic resistance. The voltage (charge) fluctuations at the back gatecan be described through a Caldeira-Leggett model of harmonic oscillators. Forweak tunneling between the lead qnd the dot, exploiting the anisotropicBose-Fermi Kondo model, we show that zero-point fluctuations of the environmentcan markedly alter the previous Matveev Kondo fixed point leading to anamplification of the Coulomb blockade phenomenon.Comment: 4 pages and 2 figures (fig 2 more explicit and changes in text on  page 2

Coulomb Blockade of a Noisy Metallic Box: A Realization of Bose-Fermi Kondo Models