Superconducting Qubit Storage and Entanglement with Nanomechanical Resonators A. N. Cleland
... a crossover time of 0.5 ns. In Fig. 4(a) the storage operation is successful, and the magnitudes of the final probability amplitudes, recorded in Table I, are extremely close to the desired RWA values. The phases of the cmn after storage, however, are not correctly given by the RWA unless g= E is mu ...
... a crossover time of 0.5 ns. In Fig. 4(a) the storage operation is successful, and the magnitudes of the final probability amplitudes, recorded in Table I, are extremely close to the desired RWA values. The phases of the cmn after storage, however, are not correctly given by the RWA unless g= E is mu ...
Decoherence of a Quantum Bit Circuit
... controlled by applying a voltage to an A gate electrode that displaces slightly the wavefunction of the bound electron, and thus modifies the hyperfine interaction. The two qubit operations are performed using the J gates, which control the exchange interaction between neighboring bound electrons, a ...
... controlled by applying a voltage to an A gate electrode that displaces slightly the wavefunction of the bound electron, and thus modifies the hyperfine interaction. The two qubit operations are performed using the J gates, which control the exchange interaction between neighboring bound electrons, a ...
Holonomic Quantum Control with Continuous
... gates can be made compatible with a (photon number) parity-based scheme protecting against photon loss [5,29]. In such a scheme, one encodes quantum information in a logical space spanned by even parity states (e.g., jαν i þ j− αν i with ν ¼ 0; 1; …; d − 1, generalizing Sec. II.D.3 of Ref. [26]). Ph ...
... gates can be made compatible with a (photon number) parity-based scheme protecting against photon loss [5,29]. In such a scheme, one encodes quantum information in a logical space spanned by even parity states (e.g., jαν i þ j− αν i with ν ¼ 0; 1; …; d − 1, generalizing Sec. II.D.3 of Ref. [26]). Ph ...
Deconvolutions of Gaussian kernels
... algorithm for photon beams. It should be mentioned that the following properties have to be satisfied: σ 0(z) < σ 1(z) < σ 2(z) and c0 + c1 + c2 = 1. Since the photons of the MV domain and protons show a preference of small-angle scattering, the relation c0 > c1 > c2 usually holds. All three kinds o ...
... algorithm for photon beams. It should be mentioned that the following properties have to be satisfied: σ 0(z) < σ 1(z) < σ 2(z) and c0 + c1 + c2 = 1. Since the photons of the MV domain and protons show a preference of small-angle scattering, the relation c0 > c1 > c2 usually holds. All three kinds o ...
Quantum Money from Hidden Subspaces
... These early ideas about quantum money inspired the field of quantum cryptography [13]. But strangely, the subject of quantum money itself lay dormant for more than two decades, even as interest in quantum computing exploded. However, the past few years have witnessed a “quantum money renaissance.” ...
... These early ideas about quantum money inspired the field of quantum cryptography [13]. But strangely, the subject of quantum money itself lay dormant for more than two decades, even as interest in quantum computing exploded. However, the past few years have witnessed a “quantum money renaissance.” ...
Emergence of a classical world from within quantum theory
... of view with our common notion of “physical reality”, which exists independently of our monitoring, and can be discovered without disturbance. Indeed, if quantum theory is correct, it should apply to classical systems — including measurement devices — as well as to any other system. In this disserta ...
... of view with our common notion of “physical reality”, which exists independently of our monitoring, and can be discovered without disturbance. Indeed, if quantum theory is correct, it should apply to classical systems — including measurement devices — as well as to any other system. In this disserta ...
Quantum information with continuous variables
... quadrature with near-unit efficiency or for displacing an optical mode in phase space are provided by homodynedetection and feedforward techniques, respectively. Continuous-variable entanglement can be efficiently produced using squeezed light 关in which the squeezing of a quadrature’s quantum fluctu ...
... quadrature with near-unit efficiency or for displacing an optical mode in phase space are provided by homodynedetection and feedforward techniques, respectively. Continuous-variable entanglement can be efficiently produced using squeezed light 关in which the squeezing of a quadrature’s quantum fluctu ...
Fifth Quantum Thermodynamics Conference (QTD5)
... and (ii) equilibration to a Generalized Gibbs Ensemble, where more quantities than energy are conserved due to, e.g., symmetries in exactly solvable many-body systems. In our work we study work extraction, entropy production, and heat engines within these two models of equilibration. For the model ( ...
... and (ii) equilibration to a Generalized Gibbs Ensemble, where more quantities than energy are conserved due to, e.g., symmetries in exactly solvable many-body systems. In our work we study work extraction, entropy production, and heat engines within these two models of equilibration. For the model ( ...
Chapter 6 Quantum Computation
... (once a suitable example is in hand) regardless of whether the answer is YES or NO. It is believed (though not proved) that NP 6= co−NP . (For example, we can show that a graph has a Hamiltonian path by exhibiting an example, but we don’t know how to show that it has no Hamiltonian path that way!) A ...
... (once a suitable example is in hand) regardless of whether the answer is YES or NO. It is believed (though not proved) that NP 6= co−NP . (For example, we can show that a graph has a Hamiltonian path by exhibiting an example, but we don’t know how to show that it has no Hamiltonian path that way!) A ...
Studies in Quantum Information Theory
... be, and Shivaji did too. And for that I am truly grateful. A huge thanks goes to Chiara and Herman, who were supportive during their respective tenures as Director of Graduate Studies, and I should also mention Laurel Lerner as being a huge help every step of the way. I believe this truly is one of ...
... be, and Shivaji did too. And for that I am truly grateful. A huge thanks goes to Chiara and Herman, who were supportive during their respective tenures as Director of Graduate Studies, and I should also mention Laurel Lerner as being a huge help every step of the way. I believe this truly is one of ...
Spin-Mediated Consciousness: Theory, Experimental Studies
... reveals itself through the structure of the relativistic quantum equation for fermions such as electrons (12). Penrose had considered early on that spin might be more fundamental than space-time and invented spinor and twistor algebras for a combinatorial description of spacetime geometry (13, 14). ...
... reveals itself through the structure of the relativistic quantum equation for fermions such as electrons (12). Penrose had considered early on that spin might be more fundamental than space-time and invented spinor and twistor algebras for a combinatorial description of spacetime geometry (13, 14). ...
Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits M. D. Shulman
... quantum state, we evaluate another measure of entanglement, the Bell state fidelity, F ≡ 〈Ψent |ρ|Ψent 〉. This may be interpreted as the probability of measuring our two-qubit state in desired |Ψent 〉. Additionally, for all non-entangled states one can show that F ≤ 0.5 [23, 24]. In terms of the Pau ...
... quantum state, we evaluate another measure of entanglement, the Bell state fidelity, F ≡ 〈Ψent |ρ|Ψent 〉. This may be interpreted as the probability of measuring our two-qubit state in desired |Ψent 〉. Additionally, for all non-entangled states one can show that F ≤ 0.5 [23, 24]. In terms of the Pau ...
annual report 2015 - ARC Centre of Excellence for Engineered
... From flat-panel monitors to optical networks, quantum mechanics has allowed us to engineer the technologies that shape our world. Today’s technology only captures a small fraction of the potential in quantum physics. The discovery of quantum revealed a new level for controlling the world, based on m ...
... From flat-panel monitors to optical networks, quantum mechanics has allowed us to engineer the technologies that shape our world. Today’s technology only captures a small fraction of the potential in quantum physics. The discovery of quantum revealed a new level for controlling the world, based on m ...
UNRAVELING OPEN QUANTUM SYSTEMS: CLASSICAL
... beyond commutativity. This extension is not only an abstract mathematical construction but it is deeply inspired from the theory of Open Quantum Systems in Physics. As a result, subtle questions about time scales and renormalization of space and time, give rise to challenging new branches of Probabi ...
... beyond commutativity. This extension is not only an abstract mathematical construction but it is deeply inspired from the theory of Open Quantum Systems in Physics. As a result, subtle questions about time scales and renormalization of space and time, give rise to challenging new branches of Probabi ...
Entanglement Witnesses
... • State acts as teleportation channel fidelity exceeds classical value (e.g., 2/3 in 2-d) ...
... • State acts as teleportation channel fidelity exceeds classical value (e.g., 2/3 in 2-d) ...
Ph.D. Thesis Rodrigo Gallego
... quantifier that represents the fraction of events that admit a local description. We focus on systems that exhibit, in that sense, maximal nonlocality. By exploiting the link between Kochen-Specker theorems and nonlocality, we derive a systematic recipe to construct maximally nonlocal correlations. ...
... quantifier that represents the fraction of events that admit a local description. We focus on systems that exhibit, in that sense, maximal nonlocality. By exploiting the link between Kochen-Specker theorems and nonlocality, we derive a systematic recipe to construct maximally nonlocal correlations. ...
Quantum correlations and measurements
... of a given state of light is a cumbersome problem to be addressed. An introduction to the theory of quantum optics can be found in the book [4]. The emerging particle of the quantized field is the photon. For quantum communications, photons play an important role as one carrier of quantum informatio ...
... of a given state of light is a cumbersome problem to be addressed. An introduction to the theory of quantum optics can be found in the book [4]. The emerging particle of the quantized field is the photon. For quantum communications, photons play an important role as one carrier of quantum informatio ...
