Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Kater, W."'
A quantum system is usually measured through observations performed on a second quantum system, or meter, to which it is coupled. In this scenario, fundamental limitations arise as stated by the celebrated Wigner-Araki-Yanase theorem and its generali
Externí odkaz:
http://arxiv.org/abs/2404.12910
Autor:
He, Guanghui, Ye, Bingtian, Gong, Ruotian, Yao, Changyu, Liu, Zhongyuan, Murch, Kater W., Yao, Norman Y., Zu, Chong
Floquet (periodically driven) systems can give rise to unique non-equilibrium phases of matter without equilibrium analogs. The most prominent example is the realization of discrete time crystals. An intriguing question emerges: what other novel phas
Externí odkaz:
http://arxiv.org/abs/2403.17842
Autor:
Chen, Weijian, Abbasi, Maryam, Erdamar, Serra, Muldoon, Jacob, Joglekar, Yogesh N., Murch, Kater W.
We experimentally study the transient dynamics of a dissipative superconducting qubit under periodic drive towards its nonequilibrium steady states. The corresponding stroboscopic evolution, given by the qubit states at times equal to integer multipl
Externí odkaz:
http://arxiv.org/abs/2403.09769
Autor:
Gaikwad, Chandrashekhar, Kowsari, Daria, Brame, Carson, Song, Xingrui, Zhang, Haimeng, Esposito, Martina, Ranadive, Arpit, Cappelli, Giulio, Roch, Nicolas, Levenson-Falk, Eli M., Murch, Kater W.
We utilize a superconducting qubit processor to experimentally probe non-Markovian dynamics of an entangled qubit pair. We prepare an entangled state between two qubits and monitor the evolution of entanglement over time as one of the qubits interact
Externí odkaz:
http://arxiv.org/abs/2401.13735
Autor:
Linpeng, Xiayu, Piccione, Nicolo, Maffei, Maria, Bresque, Lea, Prasad, Samyak P., Jordan, Andrew N., Auffeves, Alexia, Murch, Kater W.
When a measurement observable does not commute with a quantum system's Hamiltonian, the energy of the measured system is typically not conserved during the measurement. Instead, energy can be transferred between the measured system and the meter. In
Externí odkaz:
http://arxiv.org/abs/2311.13634
Autor:
Piccione, Nicolò, Maffei, Maria, Linpeng, Xiayu, Jordan, Andrew N., Murch, Kater W., Auffèves, Alexia
Publikováno v:
Phys. Rev. A 109, 063707 (2024)
Measuring an observable which does not commute with the Hamiltonian of a quantum system usually modifies the mean energy of this system. In an autonomous measurement scheme, coupling the system to a quantum meter, the system's energy change must be c
Externí odkaz:
http://arxiv.org/abs/2311.11870
Autor:
Maurya, Vivek, Zhang, Haimeng, Kowsari, Daria, Kuo, Andre, Hartsell, Darian M., Miyamoto, Clark, Liu, Jocelyn, Shanto, Sadman, Vlachos, Evangelos, Zarassi, Azarin, Murch, Kater W., Levenson-Falk, Eli M.
We present a superconducting circuit device that provides active, on-demand, tunable dissipation on a target mode of the electromagnetic field. Our device is based on a tunable "dissipator" that can be made lossy when tuned into resonance with a broa
Externí odkaz:
http://arxiv.org/abs/2310.16785
Publikováno v:
Phys. Rev. Lett. 133, 070403 (2024)
Chiral state transfer along closed loops in the vicinity of an exceptional point is one of the many counter-intuitive observations in non-Hermitian physics. The application of this property beyond proof-of-principle in quantum physics, is an open que
Externí odkaz:
http://arxiv.org/abs/2310.11381
Autor:
Erdamar, Serra, Abbasi, Maryam, Ha, Byung, Chen, Weijian, Muldoon, Jacob, Joglekar, Yogesh, Murch, Kater W.
Thermodynamics constrains changes to the energy of a system, both deliberate and random, via its first and second laws. When the system is not in equilibrium, fluctuation theorems such as the Jarzynski equality further restrict the distributions of d
Externí odkaz:
http://arxiv.org/abs/2309.12393
A coupled two-mode system with balanced gain and loss is a paradigmatic example of an open quantum system that can exhibit real spectra despite being described by a non-Hermitian Hamiltonian. We utilize a degenerate parametric amplifier operating in
Externí odkaz:
http://arxiv.org/abs/2306.14980