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12-27
2016
Loop Quantum Gravity and Quantum Geometry
Abstract: Loop Quantum Gravity is a promising theory of non-perturbative quantum gravity. It is also a theory of quantum space and time. In this talk, the motivations, ideas, and concepts in Loop Qua...
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12-23
2016
Quantum Gate Operation in the Circuit-QED Lattice with Circulator Function
Abstract: We propose a scheme for a scalable quantum computing in the circuit-quantum electrodynamics(QED) architecture. In the Kagome lattice of qubits three qubits are connected to each other throu...
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12-23
2016
Entangling Coherent States into A Maximally Entangled Qudits and/or Qudit Cluster States
Abstract: Optically coherent states can be interpreted as qudits with arbitrary integer d. Weak cross-Kerr nonlinear interaction can maximally entangle two coherent states and this can be used for va...
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12-22
2016
Quantum Journal Club: Implementing a Universal Gate Set on a Logical Qubit Encoded in an Oscillator
Abstract: A logical qubit is a two-dimensional subspace of a higher dimensional system, chosen such that it is possible to detect and correct the occurrence of certain errors [1]. Manipulation of the...
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12-22
2016
Quantum Journal Club: Observation of the Efimovian expansion in scale-invariant Fermi gases
Abstract: Scale invariance plays an important role in unitary Fermi gases. Discrete scaling symmetry manifests itself in quantum few-body systems such as the Efimov effect. Here, we report on the the...
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12-22
2016
Quantum Journal Club: Room-Temperature Quantum Bit Storage Exceeding 39 Minutes Using Ionized Donors in Silicon-28
Abstract: Quantum memories capable of storing and retrieving coherent information for extended times at room temperature would enable a host of new technologies. Electron and nuclear spin qubits usin...