Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers

Research Article

Subband Tunneling and Coulomb Effects in Coupled Quantum Wells

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  • @INPROCEEDINGS{10.1007/978-3-642-11731-2_31,
        author={H. Cruz},
        title={Subband Tunneling and Coulomb Effects in Coupled Quantum Wells},
        proceedings={Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers},
        proceedings_a={QUANTUMCOMM},
        year={2012},
        month={10},
        keywords={Electron states in low-dimensional structures Tunneling Electronic transport phenomena in thin films},
        doi={10.1007/978-3-642-11731-2_31}
    }
    
  • H. Cruz
    Year: 2012
    Subband Tunneling and Coulomb Effects in Coupled Quantum Wells
    QUANTUMCOMM
    Springer
    DOI: 10.1007/978-3-642-11731-2_31
H. Cruz1,*
  • 1: Universidad de La Laguna
*Contact email: hcruz@ull.es

Abstract

We have solved in space and time the effective-mass nonlinear Schrödinger equation for an electron-hole gas in a semiconductor superlattice. Considering a Coulomb interaction between both electron-hole gases and two subbands, we have obtained a time-varying dipole moment in the heterostructure. In this way, we have shown the possibility of having another kind of terahertz electromagnetic radiation emerging from a double quantum dot system.