distribution functions in physics: fundamentals
... properly, the ordering for P1 being different than that for P2), they do not possess what we regard as desirable properties (see section 2). In fact, they are, in general, not real. The association of distribution functions with operator ordering rules (or, equivalently, the association of operators ...
... properly, the ordering for P1 being different than that for P2), they do not possess what we regard as desirable properties (see section 2). In fact, they are, in general, not real. The association of distribution functions with operator ordering rules (or, equivalently, the association of operators ...
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... to reflect how history happens to have turned out (and so modified the prospects of future events), up to the hypersurface t. There are two issues about the association of an event with a spacetime region: the first philosophical, the second technical. (Section 4 will also have more to say about th ...
... to reflect how history happens to have turned out (and so modified the prospects of future events), up to the hypersurface t. There are two issues about the association of an event with a spacetime region: the first philosophical, the second technical. (Section 4 will also have more to say about th ...
Cavity dark states for quantum computing M.S. Shahriar , J.A. Bowers
... eective rate of decoherence due to cavity photon decay is thus reduced by nearly three orders of magnitude. Thus, the cavity dark state described here achieves the desired transfer of quantum information without being aected signi®cantly by the cavity decay, and yet does not take much longer than ...
... eective rate of decoherence due to cavity photon decay is thus reduced by nearly three orders of magnitude. Thus, the cavity dark state described here achieves the desired transfer of quantum information without being aected signi®cantly by the cavity decay, and yet does not take much longer than ...
IMPRECISE MEASUREMENTS IN QUANTUM MECHANICS
... Quantum theory has shown that measurements need also theoretical examination. Soon after the birth of quantum theory the deep nature of the theoretical issues related to measurements were generally recognized. It became clear that the concept of measurement is not at all innocuous, and an extensive ...
... Quantum theory has shown that measurements need also theoretical examination. Soon after the birth of quantum theory the deep nature of the theoretical issues related to measurements were generally recognized. It became clear that the concept of measurement is not at all innocuous, and an extensive ...
Quantum States of Neutrons in the Gravitational Field
... the grandest cultural achievements in the history of mankind. Yet, they stand separate. The presently adopted view of gravity is provided by Einstein’s General Theory of Relativity and has been unchallenged for almost a century. During this time, particle physics has firmly established that the thre ...
... the grandest cultural achievements in the history of mankind. Yet, they stand separate. The presently adopted view of gravity is provided by Einstein’s General Theory of Relativity and has been unchallenged for almost a century. During this time, particle physics has firmly established that the thre ...
Noncommutative geometry with applications to quantum physics
... does not enter the model and one may believe this is not a problem, at least not an emergent question, since each theory is working well in its domain of application and the physical situations in which both quantum and gravitational effects are to be taken into account (e.g. the first instants of t ...
... does not enter the model and one may believe this is not a problem, at least not an emergent question, since each theory is working well in its domain of application and the physical situations in which both quantum and gravitational effects are to be taken into account (e.g. the first instants of t ...
Quantum imaging technologies
... perhaps more important to gain intuition for what really is going on in quantum mechanics. The chief difficulty in understanding or explaining QM is that of language. Modern day English (or any other language) is steeped in the language of classical mechanics. This makes sense of course, as we experie ...
... perhaps more important to gain intuition for what really is going on in quantum mechanics. The chief difficulty in understanding or explaining QM is that of language. Modern day English (or any other language) is steeped in the language of classical mechanics. This makes sense of course, as we experie ...
Modelling the Role of Charge in Atmospheric Particle
... effect. The indirect effect can be further broken down into several factors: because the amount of water available for condensation stays the same, the amount of CCN affects the size of the cloud droplets, which affects the lifetime of the clouds as well as their optical properties - which in turn d ...
... effect. The indirect effect can be further broken down into several factors: because the amount of water available for condensation stays the same, the amount of CCN affects the size of the cloud droplets, which affects the lifetime of the clouds as well as their optical properties - which in turn d ...
Reliable quantum computers
... that quantum error correction really is possible. The key conceptual point we have grasped is that we can fight entanglement with entanglement. Entanglement can be our enemy, since entanglement of our device with the environment can conceal quantum information from us, and so cause errors. But entan ...
... that quantum error correction really is possible. The key conceptual point we have grasped is that we can fight entanglement with entanglement. Entanglement can be our enemy, since entanglement of our device with the environment can conceal quantum information from us, and so cause errors. But entan ...
System Science of Virtual Reality
... The underlying concepts are relatively easy to grasp if approached with persistence and genuine scepticism8 . Hence the discussion will be kept as simple and approachable as possible and will use concrete examples. If there is a choice between approaches, the more accessible approach is used wherev ...
... The underlying concepts are relatively easy to grasp if approached with persistence and genuine scepticism8 . Hence the discussion will be kept as simple and approachable as possible and will use concrete examples. If there is a choice between approaches, the more accessible approach is used wherev ...
Parton model from bi-local solitonic picture of the baryon in two-dimensions
... them, we will get the spin and flavor averaged wavefunction. The probability density of valence quarks is P |ψ̃(xB P )|2 , where xB = p/P . V (xB ) = 2π The ground state of this many body problem was found in [3], in the guise of a valence quark model. Let us just summarize the result. In the limit ...
... them, we will get the spin and flavor averaged wavefunction. The probability density of valence quarks is P |ψ̃(xB P )|2 , where xB = p/P . V (xB ) = 2π The ground state of this many body problem was found in [3], in the guise of a valence quark model. Let us just summarize the result. In the limit ...
2 Quantum Theory of Spin Waves
... momenta on different sites interact with one another. For simplicity, we will restrict our attention to the case when the angular momentum on each site is entirely due to spin. The elementary excitations of coupled spin systems in solids are called spin waves. In this chapter, we will introduce the q ...
... momenta on different sites interact with one another. For simplicity, we will restrict our attention to the case when the angular momentum on each site is entirely due to spin. The elementary excitations of coupled spin systems in solids are called spin waves. In this chapter, we will introduce the q ...
Untitled
... The other, and presently dominant approach is the “covariant” program, which starts off with trying to formulate an ordinary quantum field theory for massless helicity ±2 particles. There are good reasons to be interested in such theories: • Gravity, if it is to be described by an ‘ordinary’ quantum ...
... The other, and presently dominant approach is the “covariant” program, which starts off with trying to formulate an ordinary quantum field theory for massless helicity ±2 particles. There are good reasons to be interested in such theories: • Gravity, if it is to be described by an ‘ordinary’ quantum ...
Full text in PDF form
... according to Depew and Weber [4] its laws are deterministic, closed, reversible and atomistic. Ulanowicz [5] adds that they are also universal. Using yet another analogy, we might postulate a very different world where the particles do not operate according to symmetrical but to asymmetrical laws. H ...
... according to Depew and Weber [4] its laws are deterministic, closed, reversible and atomistic. Ulanowicz [5] adds that they are also universal. Using yet another analogy, we might postulate a very different world where the particles do not operate according to symmetrical but to asymmetrical laws. H ...
Quantum networks in the presence of D B
... tuned by external gate voltages. This has been demonstrated experimentally by measuring Shubnikov–de Haas oscillations in two-dimensional electron gas (2DEG) [17–19]. In the recent letter [20], we have shown that it is possible to obtain a localization of the electron wave function by means of the R ...
... tuned by external gate voltages. This has been demonstrated experimentally by measuring Shubnikov–de Haas oscillations in two-dimensional electron gas (2DEG) [17–19]. In the recent letter [20], we have shown that it is possible to obtain a localization of the electron wave function by means of the R ...
Introduction to Group Field Theory
... Group Field Theory: what is it? It is an approach to quantum gravity at the crossroad of loop quantum gravity (LQG) and matrix/tensor models. A simple definition: ...
... Group Field Theory: what is it? It is an approach to quantum gravity at the crossroad of loop quantum gravity (LQG) and matrix/tensor models. A simple definition: ...
