Reliable quantum computers
... analogue device, we can digitalize the errors that it makes. We deal with small errors by making appropriate measurements that project the state of our quantum computer onto either a state where no error has occurred, or a state with a large error, which can then be corrected with familiar methods. ...
... analogue device, we can digitalize the errors that it makes. We deal with small errors by making appropriate measurements that project the state of our quantum computer onto either a state where no error has occurred, or a state with a large error, which can then be corrected with familiar methods. ...
Entanglement Entropy at Infinite-Randomness Fixed Points in Higher Dimensions Yu-Cheng Lin,
... that noncritical entanglement entropy scales as the area of the boundary between the subsystems, known as the ‘‘area law’’ [3,4]. This area relationship is known to be violated for gapless fermionic systems [5] in which a logarithmic multiplicative correction is found. One might suspect that whether ...
... that noncritical entanglement entropy scales as the area of the boundary between the subsystems, known as the ‘‘area law’’ [3,4]. This area relationship is known to be violated for gapless fermionic systems [5] in which a logarithmic multiplicative correction is found. One might suspect that whether ...
Thermal equilibrium states for quantum fields on
... Poincaré group. Adjoint action with U (a, Λ) on a field operator φθ yields φΛθΛ−1 (which is compatible with (1.1)) but more importantly, is another well-defined field operator on the same Hilbert space H. It is thus possible to make the theory covariant, by not just taking field operators φθ for som ...
... Poincaré group. Adjoint action with U (a, Λ) on a field operator φθ yields φΛθΛ−1 (which is compatible with (1.1)) but more importantly, is another well-defined field operator on the same Hilbert space H. It is thus possible to make the theory covariant, by not just taking field operators φθ for som ...
The minimum mass of a charged spherically symmetric object
... Hence, the presence of the anisotropic pressure distribution weakens the lower bound on the mass. Remarkably, even anisotropic objects may still be stable, as long as their mass exceeds an absolute classical minimum value, determined by both and . The existence of a cosmological constant therefor ...
... Hence, the presence of the anisotropic pressure distribution weakens the lower bound on the mass. Remarkably, even anisotropic objects may still be stable, as long as their mass exceeds an absolute classical minimum value, determined by both and . The existence of a cosmological constant therefor ...
Two Provers in Isolation
... Commitments”, at QIP ’06, The 9th Workshop on Quantum Information Processing, January 16-20, 2006, Paris. Supported in part by CIFAR, NSERC, MITACS, QuantumWorks and FQRNT’s INTRIQ ...
... Commitments”, at QIP ’06, The 9th Workshop on Quantum Information Processing, January 16-20, 2006, Paris. Supported in part by CIFAR, NSERC, MITACS, QuantumWorks and FQRNT’s INTRIQ ...
Information, Q-Bits, and Natural Reference: a bridge from Bit to It to
... always assume that if a state of a system is diverging from disorder, “work” has been “done to perturb the system” and “outside constraints have been imposed.”26 Since the likelihood of disorder in any system greatly exceeds the likelihood of order, “decorrelation of component parameters”27 is what ...
... always assume that if a state of a system is diverging from disorder, “work” has been “done to perturb the system” and “outside constraints have been imposed.”26 Since the likelihood of disorder in any system greatly exceeds the likelihood of order, “decorrelation of component parameters”27 is what ...
Signature of non-exponential nuclear decay
... quasifission/fission fragments should be coming from a very slow process, mass-angle distribution technique should have seen, on the average, very long sticking time (>> 10-20 sec) for all the reactions studied, contrary to the observations [8, 9]. Very broad fission time distributions [19,20] are n ...
... quasifission/fission fragments should be coming from a very slow process, mass-angle distribution technique should have seen, on the average, very long sticking time (>> 10-20 sec) for all the reactions studied, contrary to the observations [8, 9]. Very broad fission time distributions [19,20] are n ...
atom interferometer - Center for Ultracold Atoms
... We recently measured the velocity dependence of the index of refraction seen by sodium matter-waves passing through a gas target. In optical parlance, we measured the dispersion, i.e. the variation of index with wavelength. Our experiment's unique sensitivity to the phase shift of forward-scattered ...
... We recently measured the velocity dependence of the index of refraction seen by sodium matter-waves passing through a gas target. In optical parlance, we measured the dispersion, i.e. the variation of index with wavelength. Our experiment's unique sensitivity to the phase shift of forward-scattered ...
Photon echo with a few photons in two-level atoms
... of spontaneous emission (SE) noise by avoiding massive population inversion. To reach this goal, they all resort to ancillary states, where spectrally selected atoms are shelved before memory operation. In addition to complicating the storage scheme, this preparation step reduces the intrinsic captu ...
... of spontaneous emission (SE) noise by avoiding massive population inversion. To reach this goal, they all resort to ancillary states, where spectrally selected atoms are shelved before memory operation. In addition to complicating the storage scheme, this preparation step reduces the intrinsic captu ...
- Nottingham ePrints
... gas molecules between 2π× 230 Hz and 2π× 234 Hz. This is in good agreement with the value for Γ estimated via the Lorentzian fit. We are operating in the classical regime, in that we observe quadrature variances that are several orders of magnitude larger than those in the quantum ground state. Ther ...
... gas molecules between 2π× 230 Hz and 2π× 234 Hz. This is in good agreement with the value for Γ estimated via the Lorentzian fit. We are operating in the classical regime, in that we observe quadrature variances that are several orders of magnitude larger than those in the quantum ground state. Ther ...
On the Exact Evaluation of Certain Instances of the Potts Partition
... Quantum Computer Evaluation of Some Instances of Potts Partition Function ...
... Quantum Computer Evaluation of Some Instances of Potts Partition Function ...
2012) all (F I
... Mon 11 Feb Second order degenerate time-independent perturbation theory Wed 13 Feb Quiz 3; Application to hydrogen-like atoms: The relativistic kinetic energy shift Thu 14 Feb Application to hydrogen-like atoms: The spin-orbit interaction, Lande’s rule, and the sodium atom Tue 19 Feb Application to ...
... Mon 11 Feb Second order degenerate time-independent perturbation theory Wed 13 Feb Quiz 3; Application to hydrogen-like atoms: The relativistic kinetic energy shift Thu 14 Feb Application to hydrogen-like atoms: The spin-orbit interaction, Lande’s rule, and the sodium atom Tue 19 Feb Application to ...
M04/16
... attain a deeper understanding of more general measurements, say measurements with a finite or even infinite number of real values. In this paper we study ways in which the orthosum and sequential product can be extended from effects to more general measurements. Just as a sequential effect algebra descr ...
... attain a deeper understanding of more general measurements, say measurements with a finite or even infinite number of real values. In this paper we study ways in which the orthosum and sequential product can be extended from effects to more general measurements. Just as a sequential effect algebra descr ...