Electronic properties of graphene antidot lattices (2009)
Fuerst, Joachim A., Pedersen, Jesper G., Flindt, Christian, Mortensen, Niels Asger, Brandbyge, Mads, Pedersen, Thomas G., ...
Graphene antidot lattices constitute a novel class of nano-engineered graphene devices with controllable electronic and optical properties. An antidot lattice consists of a periodic array of holes...
Universal oscillations in counting statistics (2009)
Flindt, Christian, Fricke, Christian, Hohls, Frank, Novotny, Tomas, Netocny, Karel, Brandes, Tobias, ...
Noise is a result of stochastic processes that originate from quantum or classical sources. Higher-order cumulants of the probability distribution underlying the stochastic events are believed to...
The influence of charge detection on counting statistics (2008)
Braggio, Alessandro, Flindt, Christian, Novotny, Tomas
We consider the counting statistics of electron transport through a double quantum dot with special emphasis on the dephasing induced by a nearby charge detector. The double dot is embedded in a...
Optical properties of graphene antidot lattices (2008)
Pedersen, Thomas G., Flindt, Christian, Pedersen, Jesper, Jauho, Antti-Pekka, Mortensen, Niels Asger, Pedersen, Kjeld
Undoped graphene is semi-metallic and thus not suitable for many electronic and optoelectronic applications requiring gapped semiconductor materials. However, a periodic array of holes (antidot...
Graphene Antidot Lattices - Designed Defects and Spin Qubits (2008)
Pedersen, Thomas G., Flindt, Christian, Pedersen, Jesper, Mortensen, Niels Asger, Jauho, Antti-Pekka, Pedersen, Kjeld
Antidot lattices, defined on a two-dimensional electron gas at a semiconductor heterostructure, are a well-studied class of man-made structures with intriguing physical properties. We point out that...
Non-Markovian signatures in the current noise of a charge qubit (2008)
Braggio, Alessandro, Flindt, Christian, Novotny, Tomas
We investigate the current noise of a charge qubit coupled to a phonon bath in different parameter regimes. We find, using the theory of Full Counting Statistics of non-Markovian systems, that the...
Designed defects in 2D antidot lattices for quantum information processing (2008)
Pedersen, Jesper, Flindt, Christian, Mortensen, Niels Asger, Jauho, Antti-Pekka
We propose a new physical implementation of spin qubits for quantum information processing, namely defect states in antidot lattices defined in the two-dimensional electron gas at a semiconductor...
Spin qubits in antidot lattices (2008)
Pedersen, Jesper, Flindt, Christian, Mortensen, Niels Asger, Jauho, Antti-Pekka
We suggest and study designed defects in an otherwise periodic potential modulation of a two-dimensional electron gas as an alternative approach to electron spin based quantum information processing...
Counting Statistics of Non-Markovian Quantum Stochastic Processes (2008)
Flindt, Christian, Novotny, Tomas, Braggio, Alessandro, Sassetti, Maura, Jauho, Antti-Pekka
We derive a general expression for the cumulant generating function (CGF) of non-Markovian quantum stochastic transport processes. The long-time limit of the CGF is determined by a single dominating...
Non-Markovian dynamics in the theory of full counting statistics (2007)
Flindt, Christian, Braggio, Alessandro, Novotny, Tomas
We consider the theoretical description of real-time counting of electrons tunneling through a Coulomb-blockade quantum dot using a detector with finite bandwidth. By tracing out the quantum dot we...
Failure of standard approximations of the exchange coupling in nanostructures (2007)
Pedersen, Jesper, Flindt, Christian, Mortensen, Niels Asger, Jauho, Antti-Pekka
We calculate the exchange coupling for a double dot system using a novel, numerically exact yet efficient technique, based on finite-element methods. Specifically, we evaluate the exchange coupling...
Spin-Photon Entangling Diode (2007)
Flindt, Christian, Sorensen, Anders S., Lukin, Mikhail D., Taylor, Jacob M.
We propose a semiconductor device that can electrically generate entangled electron spin-photon states, providing a building block for entanglement of distant spins. The device consists of a p-i-n...
Spin-orbit induced spin-qubit control in nanowires (2006)
Flindt, Christian, Sorensen, Anders S., Flensberg, Karsten
We elaborate on a number of issues concerning our recent proposal for spin-qubit manipulation in nanowires using the spin-orbit coupling. We discuss the experimental status and describe in further...
Spin-Orbit Mediated Control of Spin Qubits (2006)
Flindt, Christian, Sorensen, Anders S., Flensberg, Karsten
We propose to use the spin-orbit interaction as a means to control electron spins in quantum dots, enabling both single qubit and two qubit operations. Very fast single qubit operations may be...
Quantum computing via defect states in two-dimensional anti-dot lattices (2005)
Flindt, Christian, Mortensen, Niels Asger, Jauho, Antti-Pekka
We propose a new structure suitable for quantum computing in a solid state environment: designed defect states in antidot lattices superimposed on a two-dimensional electron gas at a semiconductor...
Noise and Bistabilities in Quantum Shuttles (2005)
Flindt, Christian, Novotny, Tomas, Jauho, Antti-Pekka
We present a study of current fluctuations in two models proposed as quantum shuttles. Based on a numerical evaluation of the first three cumulants of the full counting statistics we have recently...
Current noise spectrum of a quantum shuttle (2004)
Flindt, Christian, Novotny, Tomas, Jauho, Antti-Pekka
We present a method for calculating the full current noise spectrum for the class of nano-electromechanical systems (NEMS) that can be described by a Markovian generalized master equation. As a...
Modeling of quantum electromechanical systems (2004)
Jauho, Antti-Pekka, Novotny, Tomas, Donarini, Andrea, Flindt, Christian
We discuss methods for numerically solving the generalized Master equation GME which governs the time-evolution of the reduced density matrix of a mechanically movable mesoscopic device in a...
Full counting statistics of nano-electromechanical systems (2004)
Flindt, Christian, Novotny, Tomas, Jauho, Antti-Pekka
We develop a theory for the full counting statistics (FCS) for a class of nanoelectromechanical systems (NEMS), describable by a Markovian generalized master equation. The theory is applied to two...
Current noise in a vibrating quantum dot array (2004)
Flindt, Christian, Novotny, Tomas, Jauho, Antti-Pekka
We develop methods for calculating the zero-frequency noise for quantum shuttles, i.e. nanoelectromechanical devices where the mechanical motion is quantized. As a model system we consider a...
Shot Noise of a Quantum Shuttle (2004)
Novotny, Tomas, Donarini, Andrea, Flindt, Christian, Jauho, Antti-Pekka
We formulate a theory for shot noise in quantum nanoelectromechanical systems. As a specific example, the theory is applied to a quantum shuttle, and the zero-frequency noise, measured by the Fano...