-
The effects of Dzyaloshinskii-Moriya (DM) interaction on the thermal entanglement of mixed-spin XY chain (1/2,3/2) and spin 1 XY chain are investigated through negativity. By calculating the entanglement between two particles, it was found that the DM interaction can not only increase the entanglement, but also make the entanglement of the particles reach a stationary value. The higher the temperature, the greater the DM interaction is required to make the thermal entanglement arrive at this stationary value. Under the same condition, the entanglement between two spin 1 particles is less than that between mixed-spin. The exchange-coupling interactions between the spins are helpful to strengthen the thermal entanglement, hence the exchange-coupling can be used to modulate the entanglement along with the DM interaction. When the exchange-coupling interaction is small, one can enlarge the DM interaction to increase the entanglement, whereas, when the DM interaction is small, one can increase the thermal entanglement through increasing the exchange-coupling interaction.
-
Keywords:
- entanglement /
- XY spin chain /
- negativity /
- Dzyaloshinskii-Moriya interaction
[1] Bennett C H, Brassaro G, Crepeau C, Jozsa R, Peres A, Wootters W K 1993 Phys. Rev. Lett. 70 1895
[2] Cheng W W, Huang Y X, Liu T K, Li H 2007 Chin. Phys. 16 38
[3] Shan C J, Man Z X, Xia Y J, Liu T K 2007 Int. J. Quant. Inform 5 335
[4] Ekert A K 1991 Phys. Rev. Lett. 67 661
[5] Verstraete F, Martn-Delgado M A, Cirac J I 2004 Phys. Rev. Lett. 92 087201
[6] Nielsen M A 1998 Ph.D. thesis, University of New Mexico, quant-ph/0011036
[7] Hui X Q, Chen W X, Liu Q, Yue R H 2006 Acta Phys. Sin. 55 3026(in Chinese)[惠小强、陈文学、刘 起、岳瑞宏 2006 55 3026]
[8] Wang X G 2002 Phys. Rev. A 66 034302
[9] Arnesen M C, Bose S, Vedral V 2001 Phys. Rev. Lett. 87 017901
[10] William K W 1998 Phys. Rev. Lett. 80 2245
[11] Vidal G, Werner R F 2002 Phys. Rev. A 65 032314
[12] Schliemann J 2003 Phys. Rev. A 68 012309
[13] Qin M, Tao Y J, Hu M L, Tian D P 2008 Science in China G 38 744
[14] Wang F, Jia H H,Zhang H L,Zhang X A. Chang S L 2009 Science in China G 39 1052
[15] Wang X G 2001 Phys. Lett. A 281 101
[16] Zhang G F 2007Phys. Rev. A 75 034304
[17] Gurkan Z N, Pashaev O K 2007 Preprint quant-ph 07050679
[18] Ma X S, Zhang J Y, Cong H T, Wang A M 2009 Science in China G 39 181
[19] Cai Z, Lu W B, Liu Y J 2008 Acta Phys. Sin. 57 7267 (in Chinese)[蔡 卓、陆文彬、 刘拥军 2008 57 7267]
[20] Shan C J, Cheng W W, Liu T K, Huang Y X, Li H 2008 Acta Phys. Sin. 57 2687(in Chinese) [单传家、程维文、刘堂昆、黄燕霞、李 宏 2008 57 2687]
[21] Wang Y H, Xia Y J 2009 Acta Phys. Sin. 58 7479 (in Chinese)[王彦辉、夏云杰 2009 58 7479]
-
[1] Bennett C H, Brassaro G, Crepeau C, Jozsa R, Peres A, Wootters W K 1993 Phys. Rev. Lett. 70 1895
[2] Cheng W W, Huang Y X, Liu T K, Li H 2007 Chin. Phys. 16 38
[3] Shan C J, Man Z X, Xia Y J, Liu T K 2007 Int. J. Quant. Inform 5 335
[4] Ekert A K 1991 Phys. Rev. Lett. 67 661
[5] Verstraete F, Martn-Delgado M A, Cirac J I 2004 Phys. Rev. Lett. 92 087201
[6] Nielsen M A 1998 Ph.D. thesis, University of New Mexico, quant-ph/0011036
[7] Hui X Q, Chen W X, Liu Q, Yue R H 2006 Acta Phys. Sin. 55 3026(in Chinese)[惠小强、陈文学、刘 起、岳瑞宏 2006 55 3026]
[8] Wang X G 2002 Phys. Rev. A 66 034302
[9] Arnesen M C, Bose S, Vedral V 2001 Phys. Rev. Lett. 87 017901
[10] William K W 1998 Phys. Rev. Lett. 80 2245
[11] Vidal G, Werner R F 2002 Phys. Rev. A 65 032314
[12] Schliemann J 2003 Phys. Rev. A 68 012309
[13] Qin M, Tao Y J, Hu M L, Tian D P 2008 Science in China G 38 744
[14] Wang F, Jia H H,Zhang H L,Zhang X A. Chang S L 2009 Science in China G 39 1052
[15] Wang X G 2001 Phys. Lett. A 281 101
[16] Zhang G F 2007Phys. Rev. A 75 034304
[17] Gurkan Z N, Pashaev O K 2007 Preprint quant-ph 07050679
[18] Ma X S, Zhang J Y, Cong H T, Wang A M 2009 Science in China G 39 181
[19] Cai Z, Lu W B, Liu Y J 2008 Acta Phys. Sin. 57 7267 (in Chinese)[蔡 卓、陆文彬、 刘拥军 2008 57 7267]
[20] Shan C J, Cheng W W, Liu T K, Huang Y X, Li H 2008 Acta Phys. Sin. 57 2687(in Chinese) [单传家、程维文、刘堂昆、黄燕霞、李 宏 2008 57 2687]
[21] Wang Y H, Xia Y J 2009 Acta Phys. Sin. 58 7479 (in Chinese)[王彦辉、夏云杰 2009 58 7479]
Catalog
Metrics
- Abstract views: 10663
- PDF Downloads: 871
- Cited By: 0
下载:
