Ground-state properties of sub-Ohmic spin
... phase transition of the spin-boson model in the sub-Ohmic regime with the spin coupled diagonally and off-diagonally to a common bath. It is revealed that the off-diagonal coupling lifts the degeneracy in the localized phase, thereby removing the second-order phase transition. The interplay between ...
... phase transition of the spin-boson model in the sub-Ohmic regime with the spin coupled diagonally and off-diagonally to a common bath. It is revealed that the off-diagonal coupling lifts the degeneracy in the localized phase, thereby removing the second-order phase transition. The interplay between ...
![Edward Wilson-Ewing, 23rd February 2015 [PDF 1.69MB]](http://s1.studyres.com/store/data/018149793_1-f86d120fe9b970cd94dca9a182a1667d-300x300.png)
Edward Wilson-Ewing, 23rd February 2015 [PDF 1.69MB]
... Quantum Gravity Effects in the Early Universe One of the main difficulties of any theory of quantum gravity is to obtain predictions (that are realistically testable) and confront them to experiment or observations. The best hope in this direction appears to lie in the very early universe, where qu ...
... Quantum Gravity Effects in the Early Universe One of the main difficulties of any theory of quantum gravity is to obtain predictions (that are realistically testable) and confront them to experiment or observations. The best hope in this direction appears to lie in the very early universe, where qu ...
quantum computer graphics algorithms
... qubit. The notion of controlled gate allows the implementation of if - else constructs. Quantum controlled gates use a control qubit to determine whether a specific unitary action is applied to a target qubit. The controlled-NOT operator (CNOT) is the prototypical multi-qubit gate. The first paramet ...
... qubit. The notion of controlled gate allows the implementation of if - else constructs. Quantum controlled gates use a control qubit to determine whether a specific unitary action is applied to a target qubit. The controlled-NOT operator (CNOT) is the prototypical multi-qubit gate. The first paramet ...
Polarization statistics
... parameters (proportional to second order field correlations), that become the mean value of the Stokes operators in the quantum domain. While this characterization may be enough in classical optics, it becomes incomplete in the quantum domain, where higher order correlations are usually crucial. In ...
... parameters (proportional to second order field correlations), that become the mean value of the Stokes operators in the quantum domain. While this characterization may be enough in classical optics, it becomes incomplete in the quantum domain, where higher order correlations are usually crucial. In ...
generalized twist-deformed rindler space-times
... invariance still remains valid at larger distances [14-17]. Besides, there have been found formal arguments, based mainly on Quantum Gravity [18, 19] and String Theory models [20, 21], indicating that space-time at Planck-length should be noncommutative, i.e., it should have a quantum nature. At pre ...
... invariance still remains valid at larger distances [14-17]. Besides, there have been found formal arguments, based mainly on Quantum Gravity [18, 19] and String Theory models [20, 21], indicating that space-time at Planck-length should be noncommutative, i.e., it should have a quantum nature. At pre ...
Invited talks - Swinburne University
... with neutral atoms is in simulating the response of charged particles to external electromagnetic fields, particularly to magnetic fields. One approach has been to use rotation, where the Coriolis force mimics the Lorentz force. Because of some limitations of this approach, such as the introduction ...
... with neutral atoms is in simulating the response of charged particles to external electromagnetic fields, particularly to magnetic fields. One approach has been to use rotation, where the Coriolis force mimics the Lorentz force. Because of some limitations of this approach, such as the introduction ...
QUANTUM MECHANICS • Introduction : Quantum Mechanics with
... A bit is a classical quantity, so we can measure with arbitrary accuracy whether it is up or down. For example, a classical cat is either dead or alive (just check its pulse). We can also predict with arbitrary accuracy what would happen when we act on the bit with the rules: if we start with a up, ...
... A bit is a classical quantity, so we can measure with arbitrary accuracy whether it is up or down. For example, a classical cat is either dead or alive (just check its pulse). We can also predict with arbitrary accuracy what would happen when we act on the bit with the rules: if we start with a up, ...
Tunable spin-spin interactions and entanglement of ions in
... quantum information processor13–15 without the need to bring the quantum bits (qubits) into the same trapping potential well16,17. Such coupling might also prove useful for metrology and sensing. For example, it could extend the capabilities of quantum-logic spectroscopy18,19 to ions that cannot be ...
... quantum information processor13–15 without the need to bring the quantum bits (qubits) into the same trapping potential well16,17. Such coupling might also prove useful for metrology and sensing. For example, it could extend the capabilities of quantum-logic spectroscopy18,19 to ions that cannot be ...
Liquid-State NMR Quantum Computing
... needs to make only L such trials. Even though this speedup is only quadratic rather than exponential, it is still significant. Outside the physics community, the algorithms of Shor and Grover are probably the most popular ones. However, for physicists, another class of algorithms looks much more pro ...
... needs to make only L such trials. Even though this speedup is only quadratic rather than exponential, it is still significant. Outside the physics community, the algorithms of Shor and Grover are probably the most popular ones. However, for physicists, another class of algorithms looks much more pro ...
Entanglement Theory and the Second Law of Thermodynamics
... of copies n may generate a small amount ǫn of entanglement which vanishes asymptotically, limn→∞ ǫn = 0. It is important to note that we do not simply require that the entanglement per copy vanishes but actually the total amount of entanglement. More precisely, we call a quantum operation Ω a ǫ-non- ...
... of copies n may generate a small amount ǫn of entanglement which vanishes asymptotically, limn→∞ ǫn = 0. It is important to note that we do not simply require that the entanglement per copy vanishes but actually the total amount of entanglement. More precisely, we call a quantum operation Ω a ǫ-non- ...
Optical and Quantum Communications—J. H. Shapiro, N. C. Wong
... As in our previous work [1], this single-photon error model allows evaluation of the throughput and fidelity achieved in qubit teleportation when the only source of errors is the combined effect of propagation loss and multi-pair emission from the entanglement source. In [5,6] we studied the improve ...
... As in our previous work [1], this single-photon error model allows evaluation of the throughput and fidelity achieved in qubit teleportation when the only source of errors is the combined effect of propagation loss and multi-pair emission from the entanglement source. In [5,6] we studied the improve ...
