A Kinetic Theory Approach to Quantum Gravity
... (the first is mainly on ideas, the second is technical). On statistical field theory, one can find the material most relevant to our discussions here, i.e., the correlation hierarchy, master effective action, decoherence of correlation history and stochastic Boltzmann equation, in [13–16]. ...
... (the first is mainly on ideas, the second is technical). On statistical field theory, one can find the material most relevant to our discussions here, i.e., the correlation hierarchy, master effective action, decoherence of correlation history and stochastic Boltzmann equation, in [13–16]. ...
Experimental Implementation of Adiabatic Passage between
... the associated topological QPTs [15–17]. A large body of theoretical work exists on these systems, including several proposals for their physical implementation in cold atoms [18], polar molecules [19], or arrays of Josephson junctions [20]. However, only a very small number of experimental investig ...
... the associated topological QPTs [15–17]. A large body of theoretical work exists on these systems, including several proposals for their physical implementation in cold atoms [18], polar molecules [19], or arrays of Josephson junctions [20]. However, only a very small number of experimental investig ...
Maximum Probability Domains for Hubbard Models
... expected from Valence Bond Theory-based knowledge. ...
... expected from Valence Bond Theory-based knowledge. ...
Quantum computing: An IBM perspective
... significantly contributed to this field, with the implementation of a three-qubit quantum search algorithm [32], a five-qubit order-finding algorithm [33], the realization of an adiabatic quantum optimization algorithm [34], and a demonstration of Shor’s factoring algorithm [35] (factoring the number 15 ...
... significantly contributed to this field, with the implementation of a three-qubit quantum search algorithm [32], a five-qubit order-finding algorithm [33], the realization of an adiabatic quantum optimization algorithm [34], and a demonstration of Shor’s factoring algorithm [35] (factoring the number 15 ...
Binding energies of excitons in II–VI compound
... exciton binding energies in two broader wells are even less than those calculated using statically screened Coulomb potential. There is a dramatic drop in the value of EB as one goes from 40 Å to 50 Å wide well. The measured value of exciton binding energy in the 100 Å wide well is equal to the bulk ...
... exciton binding energies in two broader wells are even less than those calculated using statically screened Coulomb potential. There is a dramatic drop in the value of EB as one goes from 40 Å to 50 Å wide well. The measured value of exciton binding energy in the 100 Å wide well is equal to the bulk ...
Quantum Heisenberg models and their probabilistic representations
... weight of the form ϑ#cycles or ϑ#loops with parameter ϑ = 2. Recently, Schramm studied the cycle model on the complete graph and with ϑ = 1 (that is, without this factor) [41]. He showed in particular that cycle lengths are generated by a split-merge process (or “coagulation-fragmentation”), and tha ...
... weight of the form ϑ#cycles or ϑ#loops with parameter ϑ = 2. Recently, Schramm studied the cycle model on the complete graph and with ϑ = 1 (that is, without this factor) [41]. He showed in particular that cycle lengths are generated by a split-merge process (or “coagulation-fragmentation”), and tha ...
Violation of Leggett-Garg inequalities in quantum measurements
... be positive. This requirement results in the LGIs. Specifically, the LGI given by Eq. (1) simply describes the requirement that the probability Pψ (−1, +1) for the measurement outcomes s2 = −1 and s3 = +1 should be positive. Interestingly, fundamental quantum mechanics seems to suggest that these jo ...
... be positive. This requirement results in the LGIs. Specifically, the LGI given by Eq. (1) simply describes the requirement that the probability Pψ (−1, +1) for the measurement outcomes s2 = −1 and s3 = +1 should be positive. Interestingly, fundamental quantum mechanics seems to suggest that these jo ...
Dissipative tunneling - Physik Uni
... = %. Thus, there exists at all temperatures a fluctuation mode in function space with respect to which the bounce is a maximum of the action. Therefore, this characteristic fluctuation mode (q(z)=qb, for T > To; q(r)=qB(r), for T < To) has a negative eigenvalue. Below T = To, the action Se [q(z)= qb ...
... = %. Thus, there exists at all temperatures a fluctuation mode in function space with respect to which the bounce is a maximum of the action. Therefore, this characteristic fluctuation mode (q(z)=qb, for T > To; q(r)=qB(r), for T < To) has a negative eigenvalue. Below T = To, the action Se [q(z)= qb ...
Probability, Expectation Value and Uncertainty
... for which the associated eigenvalue would be, with 100% certainty, the measured result, if the observable were measured. If the system were in any other state then the possible outcomes of the measurement cannot be predicted precisely – different possible results could be obtained, each one being an ...
... for which the associated eigenvalue would be, with 100% certainty, the measured result, if the observable were measured. If the system were in any other state then the possible outcomes of the measurement cannot be predicted precisely – different possible results could be obtained, each one being an ...
INTRODUCTION TO QUANTUM CHAOS
... At the end of the nineteenth century, the paradigm most physicists (as well as most everyone actually) were relying on to understand the physical world was derived from the motion of planets. Within this paradigm, physical objects could be described by their position and velocity, quantities which c ...
... At the end of the nineteenth century, the paradigm most physicists (as well as most everyone actually) were relying on to understand the physical world was derived from the motion of planets. Within this paradigm, physical objects could be described by their position and velocity, quantities which c ...
`universal` phase for electron transmission in quantum dots
... avoided level crossing and charge shuttling between levels4. The third class deals with specific energies where both the imaginary and the real parts of the transmission coefficient vanish19. These singular points, which explain the phase slips in the valleys, might result from a deviation from a st ...
... avoided level crossing and charge shuttling between levels4. The third class deals with specific energies where both the imaginary and the real parts of the transmission coefficient vanish19. These singular points, which explain the phase slips in the valleys, might result from a deviation from a st ...
On the computational complexity of Ising spin glass models
... This procedure is polynomial because the Pfaffian of a matrix can be computed in polynomial time. A ground state can be obtained by utilising Edmonds’ (1965) algorithm to find a minimum weighted perfect matching. If the primal algorithm for optimum matching (Cunningham 1978) is utilised, each change ...
... This procedure is polynomial because the Pfaffian of a matrix can be computed in polynomial time. A ground state can be obtained by utilising Edmonds’ (1965) algorithm to find a minimum weighted perfect matching. If the primal algorithm for optimum matching (Cunningham 1978) is utilised, each change ...
What is Quantum Thermodynamics?
... There is no dispute about the results, the mathematical formalism, and the practical consequences of the theories of Mechanics and Equilibrium Thermodynamics, even though their presentations and derivations still differ essentially from author to author in logical structure and emphasis. Both Mechani ...
... There is no dispute about the results, the mathematical formalism, and the practical consequences of the theories of Mechanics and Equilibrium Thermodynamics, even though their presentations and derivations still differ essentially from author to author in logical structure and emphasis. Both Mechani ...
ppt - Département de physique
... Theorem: Given q and p : N = pq, then gar-g 0 mod N for at most p+q-1 values of g. We express the maximally mixed state as a mixture of the eigenvalues of UN,a. r 1 d d I 1 j j d j 0 d ...
... Theorem: Given q and p : N = pq, then gar-g 0 mod N for at most p+q-1 values of g. We express the maximally mixed state as a mixture of the eigenvalues of UN,a. r 1 d d I 1 j j d j 0 d ...
Detailed program - Ricardo Mendes Ribeiro
... and postdoctoral fellows, taught undergraduate as well as graduate courses, and contributed to the physics department in many ways. Shi-Jian’s research areas were condensed matter theory and quantum information. I will not go into details on Shi-Jian’s contributions, other than to point out that thr ...
... and postdoctoral fellows, taught undergraduate as well as graduate courses, and contributed to the physics department in many ways. Shi-Jian’s research areas were condensed matter theory and quantum information. I will not go into details on Shi-Jian’s contributions, other than to point out that thr ...
Bell's theorem
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Bell's theorem is a ‘no-go theorem’ that draws an important distinction between quantum mechanics (QM) and the world as described by classical mechanics. This theorem is named after John Stewart Bell.In its simplest form, Bell's theorem states:Cornell solid-state physicist David Mermin has described the appraisals of the importance of Bell's theorem in the physics community as ranging from ""indifference"" to ""wild extravagance"". Lawrence Berkeley particle physicist Henry Stapp declared: ""Bell's theorem is the most profound discovery of science.""Bell's theorem rules out local hidden variables as a viable explanation of quantum mechanics (though it still leaves the door open for non-local hidden variables). Bell concluded:Bell summarized one of the least popular ways to address the theorem, superdeterminism, in a 1985 BBC Radio interview: