Results
author = "Chirolli, Luca"
Quantum control and quantum measurement in solid state qubits
Author(s) :
Chirolli, Luca
Description :
In the past two decades significant theoretical and experimental efforts have been devoted to the study and development of mesoscopic devices, that exploit quantum coherence at the nanoscale. Quantum computing represents an emerging promising field of science and technology and is currently subject ...
Repository :
Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) :
English
Decoherence in solid state qubits
Description :
Interaction of solid state qubits with environmental degrees of freedom strongly affects the qubit dynamics, and leads to decoherence. In quantum information processing with solid state qubits, decoherence significantly limits the performances of such devices. Therefore, it is necessary to fully und...
Repository :
Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) :
English
Quantum non-demolition measurements of a qubit coupled to a harmonic oscillator
Description :
We theoretically describe the weak measurement of a two-level system (qubit) and quantify the degree to which such a qubit measurement has a quantum non-demolition (QND) character. The qubit is coupled to a harmonic oscillator which undergoes a projective measurement. Information on the qubit state ...
Repository :
Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) :
English
Full control of qubit rotations in a voltage-biased superconducting flux qubit
Description :
We study a voltage-controlled version of the superconducting flux qubit [Chiorescu et al., Science 299, 1869 (2003)] and show that full control of qubit rotations on the entire Bloch sphere can be achieved. Circuit graph theory is used to study a setup where voltage sources are attached to the two s...
Repository :
Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) :
English
Full control of qubit rotations in a voltage-biased superconducting flux qubit
Description :
We study a voltage-controlled version of the superconducting flux qubit
[Chiorescu et al., Science 299, 1869 (2003)] and show that full control of
qubit rotations on the entire Bloch sphere can be achieved. Circuit graph
theory is used to study a setup where voltage sources are attached to the two...
Repository :
arXiv
Language(s) :
Undetermined
Decoherence in Solid State Qubits
Description :
Interaction of solid state qubits with environmental degrees of freedom
strongly affects the qubit dynamics, and leads to decoherence. In quantum
information processing with solid state qubits, decoherence significantly
limits the performances of such devices. Therefore, it is necessary to fully
u...
Repository :
arXiv
Language(s) :
Undetermined
Quantum non-demolition measurements of a qubit coupled to a harmonic oscillator
Description :
We theoretically describe the weak measurement of a two-level system (qubit)
and quantify the degree to which such a qubit measurement has a quantum
non-demolition (QND) character. The qubit is coupled to a harmonic oscillator
which undergoes a projective measurement. Information on the qubit stat...
Repository :
arXiv
Language(s) :
Undetermined
Signature of chirality in scanning-probe imaging of charge flow in graphene
Description :
We theoretically propose to directly observe the chiral nature of charge carriers in graphene mono- and bilayers within a controlled scattering experiment. The charge located on a capacitively coupled scanningprobe microscope !SPM" tip acts as a scattering center with controllable position on the gr...
Repository :
Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) :
English
Signature of chirality in scanning-probe imaging of charge flow in graphene
Description :
We theoretically propose to directly observe the chiral nature of charge
carriers in graphene mono- and bilayers within a controlled scattering
experiment. The charge located on a capacitively coupled scanning probe
microscope (SPM) tip acts as a scattering center with controllable position on
the...
Repository :
arXiv
Language(s) :
Undetermined
Superconducting Resonators as Beam Splitters for Linear-Optics Quantum Computation
Description :
We propose and analyze a technique for producing a beam-splitting quantum gate between two modes of a ring-resonator superconducting cavity. The cavity has two integrated superconducting quantum interference devices (SQUIDs) that are modulated by applying an external magnetic field. The gate is acco...
Repository :
Univ. Konstanz: Konstanzer Online-Publikations-System (KOPS)
Language(s) :
English