Spin Foam Models of Quantum Spacetime
... The construction of a quantum theory of gravity remains probably the issue left unsolved in theoretical physics in the last century, in spite of a lot of efforts and many important results obtained during an indeed long history of works (for an account of this history see [1]). The problem of a comp ...
... The construction of a quantum theory of gravity remains probably the issue left unsolved in theoretical physics in the last century, in spite of a lot of efforts and many important results obtained during an indeed long history of works (for an account of this history see [1]). The problem of a comp ...
Continuous Variable Quantum Information: Gaussian States and
... with a variety of quantum hardware, and entered a stage of commercial exploitation [6]. The time seems ripe for selected quantum computing devices to live up to their high expectations [7]. Traditionally, two main approaches to quantum information processing have been pursued. On one hand, a “digita ...
... with a variety of quantum hardware, and entered a stage of commercial exploitation [6]. The time seems ripe for selected quantum computing devices to live up to their high expectations [7]. Traditionally, two main approaches to quantum information processing have been pursued. On one hand, a “digita ...
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... observation of vortices had been limited to small arrays (up to 11 vortices), both in liquid He [3] and more recently in rotating gaseous Bose-Einstein condensates (BEC) [4, 5]. We have observed the formation of highly-ordered vortex lattices in a rotating Bose-condensed gas [6]. They were produced ...
... observation of vortices had been limited to small arrays (up to 11 vortices), both in liquid He [3] and more recently in rotating gaseous Bose-Einstein condensates (BEC) [4, 5]. We have observed the formation of highly-ordered vortex lattices in a rotating Bose-condensed gas [6]. They were produced ...
Disorder and entropy rate in discrete time quantum walks
... random, we call the process random walk [1–7]. In general, random walks follow the Liouville equation, thus can be fully described and understood in terms of classical mechanics. Random walks are basic mathematical tools, used to model a rich variety of physical systems. The path of a single dye mol ...
... random, we call the process random walk [1–7]. In general, random walks follow the Liouville equation, thus can be fully described and understood in terms of classical mechanics. Random walks are basic mathematical tools, used to model a rich variety of physical systems. The path of a single dye mol ...
- Philsci-Archive
... Since I am not taking into account more recent contributions, a work that goes back to the early fifties of last century and before might seem dated. Here I must distinguish between the above mentioned ‘formal’ approaches and technical developments made in quantum electrodynamics. Two good examples ...
... Since I am not taking into account more recent contributions, a work that goes back to the early fifties of last century and before might seem dated. Here I must distinguish between the above mentioned ‘formal’ approaches and technical developments made in quantum electrodynamics. Two good examples ...
Quantum Databases
... reserve plane tickets some time in advance and there is time on the order of days – or months – between the time the booking transaction commits and the time the seat actually needs to be used. In this paper, we observe that both flexibility and the time delay from resource request to usage can and ...
... reserve plane tickets some time in advance and there is time on the order of days – or months – between the time the booking transaction commits and the time the seat actually needs to be used. In this paper, we observe that both flexibility and the time delay from resource request to usage can and ...
Vladimirov A.A., Diakonov D. Diffeomorphism
... several ways to construct such a lattice, see, e.g., [3Ä5]. In this paper we present a lattice-discretization procedure that preserves the diffeomorphism invariance of any action. In most lattice approaches the continuum action is replaced by the sum over lattice vertices, where the ˇeld derivatives ...
... several ways to construct such a lattice, see, e.g., [3Ä5]. In this paper we present a lattice-discretization procedure that preserves the diffeomorphism invariance of any action. In most lattice approaches the continuum action is replaced by the sum over lattice vertices, where the ˇeld derivatives ...
W. Ketterle
... of the velocity distribution as observed for ballistically expanding clouds of atoms. However, the dominant contribution to the observed momentum distribution of the expanding condensate was the released atomic interaction energy (mean-field energy) resulting in momentum distributions much broader t ...
... of the velocity distribution as observed for ballistically expanding clouds of atoms. However, the dominant contribution to the observed momentum distribution of the expanding condensate was the released atomic interaction energy (mean-field energy) resulting in momentum distributions much broader t ...
Quantum information with continuous variables
... physical systems in which information is stored and by means of which information is processed or transmitted. Hence physical concepts, and at a more fundamental level quantum physical concepts, must be incorporated in a theory of information and computation. Furthermore, the exploitation of quantum ...
... physical systems in which information is stored and by means of which information is processed or transmitted. Hence physical concepts, and at a more fundamental level quantum physical concepts, must be incorporated in a theory of information and computation. Furthermore, the exploitation of quantum ...
Using JCP format
... can also be used for floppy molecules in an energy range broad enough so that more than one equilibrium position have to be taken into account. A detailed calculation scheme was provided, which was shown to work for simple models. The first purpose of the present paper is to extend that study and to ...
... can also be used for floppy molecules in an energy range broad enough so that more than one equilibrium position have to be taken into account. A detailed calculation scheme was provided, which was shown to work for simple models. The first purpose of the present paper is to extend that study and to ...
Circuit QED: Superconducting Qubits Coupled to
... capabilities that are impossible to realize on classical hardware. You might think that quantum machines have already been built. For example, the laser and the transistor would seem to rely on quantum physics for their operation. It is clear that the frequency of a laser cannot be computed without ...
... capabilities that are impossible to realize on classical hardware. You might think that quantum machines have already been built. For example, the laser and the transistor would seem to rely on quantum physics for their operation. It is clear that the frequency of a laser cannot be computed without ...
Spatial entanglement in two-electron atomic systems
... The data reported by Coe and D’Amico [14] show a smaller amount of entanglement. It should be noted that the result of Manzano et al. [13] involves large variances due to the Monte Carlo calculations. For the prediction by Dehesa et al. [18], the variances are significantly reduced. In Fig. 2, we dem ...
... The data reported by Coe and D’Amico [14] show a smaller amount of entanglement. It should be noted that the result of Manzano et al. [13] involves large variances due to the Monte Carlo calculations. For the prediction by Dehesa et al. [18], the variances are significantly reduced. In Fig. 2, we dem ...
Reading out a quantum bit
... giving rise to a measurement induced dephasing rate Γϕ . The general relation between the distinguishability of qubit states and measurement induced dephasing translates into the inequality η = (tms Γϕ )−1 ≤ 1, where η is the so-called quantum efficiency. This is an interesting concept in optimizing ...
... giving rise to a measurement induced dephasing rate Γϕ . The general relation between the distinguishability of qubit states and measurement induced dephasing translates into the inequality η = (tms Γϕ )−1 ≤ 1, where η is the so-called quantum efficiency. This is an interesting concept in optimizing ...
