"Liquid-State NMR Quantum Computing" in
... in a superposition state |f (0) + |f (1) will give either “f(0)” or “f(1),” with equal probabilities, while causing instantaneous and complete decoherence. Similarly, after doing 2n computations all at once, resulting in a superposition of 2n output values, a measurement of the qubits randomly ret ...
... in a superposition state |f (0) + |f (1) will give either “f(0)” or “f(1),” with equal probabilities, while causing instantaneous and complete decoherence. Similarly, after doing 2n computations all at once, resulting in a superposition of 2n output values, a measurement of the qubits randomly ret ...
PHYS571: Lecture Notes Modern Atomic Physics
... Relaxation arises from the collection of weak and effectively random perturbations that practically every atomic oscillator is subject to. These perturbations are conventionally attributed to interaction with the “environment” or “reservoir”, which means any very large physical system coupled to a s ...
... Relaxation arises from the collection of weak and effectively random perturbations that practically every atomic oscillator is subject to. These perturbations are conventionally attributed to interaction with the “environment” or “reservoir”, which means any very large physical system coupled to a s ...
Quantum Chaos and Quantum Computers
... imperfections and residual inter-qubit couplings, is determined. This phenomenon appears in an isolated quantum computer without any external decoherence. The onset of quantum chaos leads to quantum computer hardware melting, strong quantum entropy growth and destruction of computer operability. The ...
... imperfections and residual inter-qubit couplings, is determined. This phenomenon appears in an isolated quantum computer without any external decoherence. The onset of quantum chaos leads to quantum computer hardware melting, strong quantum entropy growth and destruction of computer operability. The ...
PACS numbers: 32.80.Pj, 42.50.Vk, 89.80.+h In a quantum computer
... of bits l in the largest number which may be factored. In this case the value of l will depend on the value of the coherence time τe . In figure 2 we have plotted the values of l as a function of the experimental coherence time for the three species of ions discussed above. As τe increases, the larg ...
... of bits l in the largest number which may be factored. In this case the value of l will depend on the value of the coherence time τe . In figure 2 we have plotted the values of l as a function of the experimental coherence time for the three species of ions discussed above. As τe increases, the larg ...
Fault-Tolerant Quantum Computation and the Threshold Theorem
... In any discussion of the threshold theorem for fault-tolerant quantum computation, one of the most important points is what is assumed in the order to produce the threshold. It is useful to list the assumptions which are put into the model. We will not be able to discuss the threshold theorem under ...
... In any discussion of the threshold theorem for fault-tolerant quantum computation, one of the most important points is what is assumed in the order to produce the threshold. It is useful to list the assumptions which are put into the model. We will not be able to discuss the threshold theorem under ...
Lectures on Quantum Gravity and Black Holes
... In D > 2, this term is not renormalizable. This means that the theory is strongly coupled at the Planck scale. If we try to compute scattering amplitudes using Feynman diagrams, we would find non-sensical, non-unitary answers for E & MP . The rules of effective field theory tell us that we must incl ...
... In D > 2, this term is not renormalizable. This means that the theory is strongly coupled at the Planck scale. If we try to compute scattering amplitudes using Feynman diagrams, we would find non-sensical, non-unitary answers for E & MP . The rules of effective field theory tell us that we must incl ...
Atomic motion in laser light: connection between semiclassical and
... a general way, that the momentum diffusion coefficient appearing in the Fokker,Planck equation exactly coincides with the one deduced in the semiclassical theory from the autocorrelation function of the radiative force. Furthermore, we establish some interesting new results. For example, we get for ...
... a general way, that the momentum diffusion coefficient appearing in the Fokker,Planck equation exactly coincides with the one deduced in the semiclassical theory from the autocorrelation function of the radiative force. Furthermore, we establish some interesting new results. For example, we get for ...
On the Study of Quantum Properties of Space-Time with
... \quantum deformation" of Minkowski space-time) by probes of higher energies. [An example of such space-times has been discussed in Ref. [21] and references therein.] One of the e ects that could characterize a quasi-Minkowski space-time is quantum uctuations of distances. These are the focus of the ...
... \quantum deformation" of Minkowski space-time) by probes of higher energies. [An example of such space-times has been discussed in Ref. [21] and references therein.] One of the e ects that could characterize a quasi-Minkowski space-time is quantum uctuations of distances. These are the focus of the ...
QUANTUM MONTE CARLO SIMULATION OF TUNNELLING DEVICES USING WAVEPACKETS AND BOHM TRAJECTORIES
... property of Bohm trajectories in one dimensional tunneling configurations, Physical Review A., v:54(4), p:2595, (1996) This paper is devoted to study several practical implications of the noncrossing property of Bohm trajectories. Tunnelling times are discussed within the Bohm's interpretation. On t ...
... property of Bohm trajectories in one dimensional tunneling configurations, Physical Review A., v:54(4), p:2595, (1996) This paper is devoted to study several practical implications of the noncrossing property of Bohm trajectories. Tunnelling times are discussed within the Bohm's interpretation. On t ...
quantum computation of the jones polynomial - Unicam
... The Jones polynomial is one of the most important knot invariants. The definition of it, given by Vaughan Jones in 1984, is based on the realization of knots as closed braids and on algebraic notions inspired to Quantum Physics, such as Heck algebras and the Yang-Baxter equation. Some years later, L ...
... The Jones polynomial is one of the most important knot invariants. The definition of it, given by Vaughan Jones in 1984, is based on the realization of knots as closed braids and on algebraic notions inspired to Quantum Physics, such as Heck algebras and the Yang-Baxter equation. Some years later, L ...
Document
... The continuous time Laplace transform is important for two reasons: • It can be considered as a Fourier transform when the signals had infinite energy • It decomposes a signal x(t) in terms of its basis functions est, which are only altered by magnitude/phase when passed through a LTI system. ...
... The continuous time Laplace transform is important for two reasons: • It can be considered as a Fourier transform when the signals had infinite energy • It decomposes a signal x(t) in terms of its basis functions est, which are only altered by magnitude/phase when passed through a LTI system. ...
Alma Mater Studiorum Universit`a degli Studi di Bologna
... Non-Linear Sigma Models (NLSMs). They can be considered as toy models useful to investigate the main issues of QCD in a simpler setup. We shall see in the next lines that there are much deeper reasons to investigate NLSM, but this was the original motivation that convinced theorists to investigate t ...
... Non-Linear Sigma Models (NLSMs). They can be considered as toy models useful to investigate the main issues of QCD in a simpler setup. We shall see in the next lines that there are much deeper reasons to investigate NLSM, but this was the original motivation that convinced theorists to investigate t ...
Lagrangian Dynamics
... If a system is made up of n particles, we can specify the positions of all particles with 3n coordinates. On the other hand, if there are m equations of constraints (for example, if some particles were connected to form rigid bodies), then the 3n coordinates are not all independent. There will be on ...
... If a system is made up of n particles, we can specify the positions of all particles with 3n coordinates. On the other hand, if there are m equations of constraints (for example, if some particles were connected to form rigid bodies), then the 3n coordinates are not all independent. There will be on ...
