arXiv:1601.06197v1 [cond-mat.quant
... Boltzmann kinetic equation for the occupation numbers of these single-particle modes. As cooling of the gas proceeds due to inter-particle collisions and interactions with an external bath, if one is present, the occupation numbers of lower-energy modes increase. Once phase correlations between thes ...
... Boltzmann kinetic equation for the occupation numbers of these single-particle modes. As cooling of the gas proceeds due to inter-particle collisions and interactions with an external bath, if one is present, the occupation numbers of lower-energy modes increase. Once phase correlations between thes ...
A quantum gas with tunable interactions in an optical lattice
... and would constitute an ideal source for a matter wave interferometer. Unfortunately, because of the high density in a BEC, interactions lead to phase diffusion and can cause systematic frequency shifts due to unwanted density gradients, limiting the performance of the interferometer. This limitatio ...
... and would constitute an ideal source for a matter wave interferometer. Unfortunately, because of the high density in a BEC, interactions lead to phase diffusion and can cause systematic frequency shifts due to unwanted density gradients, limiting the performance of the interferometer. This limitatio ...
Chapter 1. Some experimental facts
... Some objections to formula (19) can be raised. Some of them were raised at the end of the 19 th century , at a time when atomic physics was in a rudimentary stage and special relativity had not been formulated. These objections are still today repeated with no afterthought , see for example Ref 1 , ...
... Some objections to formula (19) can be raised. Some of them were raised at the end of the 19 th century , at a time when atomic physics was in a rudimentary stage and special relativity had not been formulated. These objections are still today repeated with no afterthought , see for example Ref 1 , ...
Macroscopic superposition states and decoherence by quantum
... of quantum states. This phenomenon, commonly referred to as decoherence or dephasing, is the subject of the second part of the thesis with the title “Decoherence by quantum telegraph noise”. We have studied the time evolution of the reduced density matrix of a two-level system (qubit) subject to qua ...
... of quantum states. This phenomenon, commonly referred to as decoherence or dephasing, is the subject of the second part of the thesis with the title “Decoherence by quantum telegraph noise”. We have studied the time evolution of the reduced density matrix of a two-level system (qubit) subject to qua ...
Superconducting Qubits and Circuits: Artificial Atoms Coupled to
... we have come to understand that superposition and entanglement are features of quantum physics which can be used as resources to make powerful quantum computers to process information in ways that are impossible classically. What else we can do with quantum machines is not yet fully understood. The ...
... we have come to understand that superposition and entanglement are features of quantum physics which can be used as resources to make powerful quantum computers to process information in ways that are impossible classically. What else we can do with quantum machines is not yet fully understood. The ...
Quantum Computation: Theory and Implementation
... in Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Physics and to the Department of Electrical Engineering and Computer Science in Partial Fulfillment of the Requirements for the Degrees of Bachelor of Science in Electrical Engineering and Computer Science and Master ...
... in Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Physics and to the Department of Electrical Engineering and Computer Science in Partial Fulfillment of the Requirements for the Degrees of Bachelor of Science in Electrical Engineering and Computer Science and Master ...
arXiv:quant-ph/0202122 v1 21 Feb 2002
... computers”, capable of handling otherwise untractable problems, has excited not only researchers from many different fields like physicists, mathematicians and computer scientists, but also a large public audience. On a practical level all these new visions are based on the ability to control the quan ...
... computers”, capable of handling otherwise untractable problems, has excited not only researchers from many different fields like physicists, mathematicians and computer scientists, but also a large public audience. On a practical level all these new visions are based on the ability to control the quan ...
Between classical and quantum
... classical observables’, which lies at the basis of quantization theory. Similarly, Bohr’s correspondence principle (in somewhat revised form) and Schrödinger’s wave packets (or coherent states) continue to be of great importance in understanding classical behaviour from quantum mechanics. On the ot ...
... classical observables’, which lies at the basis of quantization theory. Similarly, Bohr’s correspondence principle (in somewhat revised form) and Schrödinger’s wave packets (or coherent states) continue to be of great importance in understanding classical behaviour from quantum mechanics. On the ot ...
Statistical Mechanics - Uwe
... thermodynamic properties from the underlying microscopic physics. At microscopic scales physics is governed by quantum mechanics. Hence, to some extent we will be dealing with quantum statistical mechanics. In general it will be difficult to derive the averaged thermodynamic quantities exactly from ...
... thermodynamic properties from the underlying microscopic physics. At microscopic scales physics is governed by quantum mechanics. Hence, to some extent we will be dealing with quantum statistical mechanics. In general it will be difficult to derive the averaged thermodynamic quantities exactly from ...
history of quantum computing
... standard, or “classical” physics, such as: 1. Superposition. If a system can be in state A or state B, it can also be in a “mixture” of the two states. If we measure it, we see either A or B, probabilistically. 2. Collapse. Any further measurements will give the same result. 3. Entanglement. There e ...
... standard, or “classical” physics, such as: 1. Superposition. If a system can be in state A or state B, it can also be in a “mixture” of the two states. If we measure it, we see either A or B, probabilistically. 2. Collapse. Any further measurements will give the same result. 3. Entanglement. There e ...
Short Answers to Questions
... Ans. Time period of the pendulum depends upon g. since g varies at different places, so this cannot be a good standard. Secondly, the pendulum should be free from frictional effects, and an ideal pendulum is difficult to construct. Q.3 Why do we find it useful to have two units for the amount of sub ...
... Ans. Time period of the pendulum depends upon g. since g varies at different places, so this cannot be a good standard. Secondly, the pendulum should be free from frictional effects, and an ideal pendulum is difficult to construct. Q.3 Why do we find it useful to have two units for the amount of sub ...
Quantum Annealing with Markov Chain Monte Carlo Simulations
... and its implementations, and the second part proposes statistical methodologies to analyze data generated from annealing experiments. Specifically, we introduce quantum annealing to solve optimization problems and describe D-Wave computing devices to implement quantum annealing. We illustrate implem ...
... and its implementations, and the second part proposes statistical methodologies to analyze data generated from annealing experiments. Specifically, we introduce quantum annealing to solve optimization problems and describe D-Wave computing devices to implement quantum annealing. We illustrate implem ...
QUANTUM STATES, ENTANGLEMENT and CLOSED TIMELIKE
... can purify ρCTC . But then the pure entangled state depends on ρCR and U, i.e., |Φi = |Φ(ψ, U)i. • In ordinary quantum theory if we have two systems (say) with density matrices ρ and ρS and they interact via ρ ⊗ ρs → U(ρ ⊗ ρs )U † , then we can always purify ρS such that ρS = TrA (|ΨiSA hΨ|), where ...
... can purify ρCTC . But then the pure entangled state depends on ρCR and U, i.e., |Φi = |Φ(ψ, U)i. • In ordinary quantum theory if we have two systems (say) with density matrices ρ and ρS and they interact via ρ ⊗ ρs → U(ρ ⊗ ρs )U † , then we can always purify ρS such that ρS = TrA (|ΨiSA hΨ|), where ...
Brownian functionals in Physics and Computer Science
... THE year 2005 marks the centenary of the publication of three remarkable papers by Einstein, one on Brownian motion1, one on special relativity2, and the other one on the photoelectric effect and light quanta3. Each of them made a revolution on its own. In particular, his paper on Brownian motion (a ...
... THE year 2005 marks the centenary of the publication of three remarkable papers by Einstein, one on Brownian motion1, one on special relativity2, and the other one on the photoelectric effect and light quanta3. Each of them made a revolution on its own. In particular, his paper on Brownian motion (a ...
Quantum Measurement Theory
... will only be equal to 1 one time in a thousand cases. Now let us consider a slightly different two-come measurement from the one above (this new choice will make the logic simple). The likelihood function for this new measurement is given in table 1.2, and in words is as follows: if x = 0 then y is ...
... will only be equal to 1 one time in a thousand cases. Now let us consider a slightly different two-come measurement from the one above (this new choice will make the logic simple). The likelihood function for this new measurement is given in table 1.2, and in words is as follows: if x = 0 then y is ...