Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Ansari, Mohammad H"'
Autor:
Jiang, Zhongyi, Ansari, Mohammad H.
Introducing flexible native entanglement gates can significantly reduce circuit complexity. We propose a novel gate integrating iswap and cphase operations within a single gate cycle. We theoretically show one possible realization of this gate for su
Externí odkaz:
http://arxiv.org/abs/2411.19398
Publikováno v:
Phys. Rev. Applied 22, 064030 (2024)
Developing Hamiltonian models for quantum processors with many qubits on the same chip is crucial for advancing quantum computing technologies. Stray couplings between qubits lead to errors in gate operations. This study underscores the importance of
Externí odkaz:
http://arxiv.org/abs/2402.09145
Autor:
Pazem, Joséphine, Ansari, Mohammad H.
Current quantum hardware is subject to various sources of noise that limits the access to multi-qubit entangled states. Quantum autoencoder circuits with a single qubit bottleneck have shown capability to correct error in noisy entangled state. By in
Externí odkaz:
http://arxiv.org/abs/2303.01134
Autor:
Ku, Jaseung, Xu, Xuexin, Brink, Markus, McKay, David C., Hertzberg, Jared B., Ansari, Mohammad H., Plourde, B. L. T.
Publikováno v:
Phys. Rev. Lett. 125, 200504 (2020)
Mitigating crosstalk errors, whether classical or quantum mechanical, is critically important for achieving high-fidelity entangling gates in multi-qubit circuits. For weakly anharmonic superconducting qubits, unwanted $ZZ$ interactions can be suppre
Externí odkaz:
http://arxiv.org/abs/2003.02775
Publikováno v:
Entropy 2019, 21(9), 854
Currently, 'time' does not play any essential role in quantum information theory. In this sense, quantum information theory is underdeveloped similarly to how quantum physics was underdeveloped before Erwin Schrodinger introduced his famous equation
Externí odkaz:
http://arxiv.org/abs/1907.09241
Autor:
Ansari, Mohammad H.
Publikováno v:
Phys. Rev. B 100, 024509 (2019)
Superconducting circuits consisting of a few low-anharmonic transmons coupled to readout and bus resonators can perform basic quantum computations. Since the number of qubits in such circuits is limited to not more than a few tens, the qubits can be
Externí odkaz:
http://arxiv.org/abs/1907.07146
Autor:
Ansari, Mohammad H.
Publikováno v:
Phys. Rev. B 100, 024509 (2019)
We present a theoretical description for circuits consisting of weak anharmonic qubits coupled to cavity multimodes. We obtain a unitary transformation that diagonalizes harmonic sector of the circuit. Weak anharmonicity does not alter the normal mod
Externí odkaz:
http://arxiv.org/abs/1807.00792
Autor:
Ansari, Mohammad H.
Publikováno v:
Phys. Rev. B 95, 174302 (2017)
We evaluate entropy production in a photovoltaic cell that is modeled by four electronic levels resonantly coupled to thermally populated field modes at different temperatures. We use a formalism recently proposed, the so-called multiple parallel wor
Externí odkaz:
http://arxiv.org/abs/1704.05527
Autor:
Ansari, Mohammad H
A common approach to evaluate entropy in quantum systems is to solve a master-Bloch equation to determine density matrix and substitute it in entropy definition. However, this method has been recently understood to lack many energy correlators. The n
Externí odkaz:
http://arxiv.org/abs/1605.04620
Autor:
Ansari, Mohammad H.
Entropy is one of the central quantities in thermodynamics, whose flow between two systems determines the statistics of energy transfers. In quantum systems entropy is non-linear in density matrix whose time evolution is cumbersome. Using recent deve
Externí odkaz:
http://arxiv.org/abs/1512.06288