Three Myths about Time Reversal in Quantum Theory
... Both Callender and Albert argue that there is something unnatural about supposing time reversal does more than reverse the order of states in a trajectory. The standard expression of time reversal maps a trajectory w(t) to Tw(2t), reversing the order of a trajectory t ↦ 2t but also transforming inst ...
... Both Callender and Albert argue that there is something unnatural about supposing time reversal does more than reverse the order of states in a trajectory. The standard expression of time reversal maps a trajectory w(t) to Tw(2t), reversing the order of a trajectory t ↦ 2t but also transforming inst ...
Measurement Models for Quantum Zeno and anti
... according to the Schrödinger equation is valid. On the other hand, measured system experiences “reduction” or “collapse of the wave function”. Such dualistic description has been a problem since early development of quantum mechanics. During recent years the measurement problem attracted much atten ...
... according to the Schrödinger equation is valid. On the other hand, measured system experiences “reduction” or “collapse of the wave function”. Such dualistic description has been a problem since early development of quantum mechanics. During recent years the measurement problem attracted much atten ...
Chapter 5 Quantum Information Theory
... Chapter 5 Quantum Information Theory Quantum information theory is a rich subject that could easily have occupied us all term. But because we are short of time (I’m anxious to move on to quantum computation), I won’t be able to cover this subject in as much depth as I would have liked. We will settl ...
... Chapter 5 Quantum Information Theory Quantum information theory is a rich subject that could easily have occupied us all term. But because we are short of time (I’m anxious to move on to quantum computation), I won’t be able to cover this subject in as much depth as I would have liked. We will settl ...
atom interferometer - Center for Ultracold Atoms
... SEM and optical observations as part of our ongoing collaboration with H. Smith’s nanofabrication team at MIT. Decoherence from Multiple Photon Scattering Using our improved Mach Zehnder interferometer for atoms we completed a study of quantum decoherence. The process of decoherence in quantum syste ...
... SEM and optical observations as part of our ongoing collaboration with H. Smith’s nanofabrication team at MIT. Decoherence from Multiple Photon Scattering Using our improved Mach Zehnder interferometer for atoms we completed a study of quantum decoherence. The process of decoherence in quantum syste ...
Quantum Computing with Majorana Fermions Coupled to
... ability to use bits in quantum mechanical superposition states, rather than just zero or one, in calculations. Unfortunately, many proposed realizations of these quantum bits, or qubits, are extremely vulnerable to decoherence, which destroys the superposition state. Recently, this has motivated int ...
... ability to use bits in quantum mechanical superposition states, rather than just zero or one, in calculations. Unfortunately, many proposed realizations of these quantum bits, or qubits, are extremely vulnerable to decoherence, which destroys the superposition state. Recently, this has motivated int ...
Document
... However: vN entropy is constant if applied to closed systems, where all dof’s and their correlations are known. In practice: never the case! ...
... However: vN entropy is constant if applied to closed systems, where all dof’s and their correlations are known. In practice: never the case! ...
THE K-THEORY OF FREE QUANTUM GROUPS 1. Introduction A
... special case l = 0 and P1 = · · · = Pk = 1 ∈ GL1 (C) of this family reduces to the classical free group Fk on k generators. In order to explain our notation let us briefly review some definitions. Given a matrix Q ∈ GLn (C), the full C ∗ -algebra of the free unitary quantum group FU (Q) is the unive ...
... special case l = 0 and P1 = · · · = Pk = 1 ∈ GL1 (C) of this family reduces to the classical free group Fk on k generators. In order to explain our notation let us briefly review some definitions. Given a matrix Q ∈ GLn (C), the full C ∗ -algebra of the free unitary quantum group FU (Q) is the unive ...
Useful Concepts from Information Theory
... never infinite, we sometimes have to send atypical messages. Real coding schemes handle this by having a code word for every possible message (not merely the typical messages), but they use short code words for typical messages, and long code words for atypical messages. This allows one to get close ...
... never infinite, we sometimes have to send atypical messages. Real coding schemes handle this by having a code word for every possible message (not merely the typical messages), but they use short code words for typical messages, and long code words for atypical messages. This allows one to get close ...
Spin and Quantum Measurement
... which to measure the spin projection, but we could have chosen any other axis and would have obtained the same results. Now that we know the fine details of the Stern-Gerlach experiment, we simplify the experiment for the rest of our discussions by focusing on the essential features. A simplified sc ...
... which to measure the spin projection, but we could have chosen any other axis and would have obtained the same results. Now that we know the fine details of the Stern-Gerlach experiment, we simplify the experiment for the rest of our discussions by focusing on the essential features. A simplified sc ...
Matrix Mechanics and Wave Mechanics - Philsci
... observed phenomena, such as the occurrence of spectral lines of different intensities, and attempted to reduce them to essentially corpuscular properties. Schrödinger perceived the field-like continuity of some key micro-physical phenomena (e.g., those related to the double-slit experiments), as the ...
... observed phenomena, such as the occurrence of spectral lines of different intensities, and attempted to reduce them to essentially corpuscular properties. Schrödinger perceived the field-like continuity of some key micro-physical phenomena (e.g., those related to the double-slit experiments), as the ...
Superconducting Circuits and Quantum Computation—T. P. Orlando
... simple two-level system, observing such a gap would be unexpected for an incoherent transition, since the population in the lower level should always be larger than 0.5 in that case. In order to address this gap phenomenon in our multi-level system, a multi-level pump-decaying model is introduced. T ...
... simple two-level system, observing such a gap would be unexpected for an incoherent transition, since the population in the lower level should always be larger than 0.5 in that case. In order to address this gap phenomenon in our multi-level system, a multi-level pump-decaying model is introduced. T ...
