– We analyze the effect of a quantum error correcting code on the entanglement of encoded logical qubits in the presence of a dephasing interaction with a correlated environment. Such correlated reservoir introduces entanglement between physical qubits. We show that for short times the quantum error correction interprets such entanglement as errors and suppresses it. However for longer time, al...

Ensuring the correct functioning of quantum error correction (QEC) circuits is crucial to achieve fault tolerance in realistic processors subjected noise. The first checkpoint for a fully operational QEC circuit create genuine multipartite entanglement (GME) across all subsystems physical qubits. We introduce conditional witnessing technique certify GME that efficient number and, importantly, r...

<p>Semakin berkembangnya suatu industri, maka perusahaan tentunya ingin agar produktivitas kerja bisa lebih baik dan akan meningkatkan produksi. Dengan adanya tenaga yang kurang maksimal saat bekerja sangat mempengaruhi itu sendiri. UD Bintang Timur ini didirikan pada tahun 1988 – sekarang terletak di Desa Palem Watu, Rt 03, Rw 02, Gempol Kurung, Kec. Menganti, Kab. Gresik. memproduksi al...

background: the aim of this paper was the comparison of ergonomic risk assessment results (final score and action levels) for the entire body as determined using quick exposure check (qec) and rapid entire body assessment (reba).  materials and methods: this was a cross-sectional study in which all 82 workers engaged in various processes with different activities in an anodizing and aluminum pr...

Masses of the radioactive isotopes Ga, Zn and Cu have been measured at the JYFLTRAP facility with a relative precision of better than 1.8× 10. A QEC value of (9181.07 ± 0.54) keV for the superallowed decay of Ga is obtained from the measured cyclotron frequency ratios of Ga—Zn, Ga—Ni and Zn—Ni ions. The resulting Ft-value supports the validity of the conserved vector current hypothesis (CVC). T...

In this study, we introduce a new Gray map which preserves the orthogonality from the chain ring F2 [u] / (u) to F s 2 where F2 is the finite field with two elements. We also give a condition of the existence for cyclic codes of odd length containing its dual over the ring F2 [u] / (u) . By taking advantage of this Gray map and the structure of the ring, we obtain two classes of binary quantum ...

background: musculoskeletal disorders (msds) are one of the most common causes of occupational injuries that appear mainly in back, neck and upper limb. this study was conducted with the objectives of determination of prevalence rate of msds among workers of a generator manufacturing company and ergonomics assessment of working conditions. methods: in this study, 319 workers randomly selected p...